The Billionaire founded Tesla and SpaceX, was a co-founder of Paypal, and works closely with NASA in efforts to make space travel more affordable. Elon Musk is consistently in the news thanks to his innovative ideas and creative endeavors. We’ve compiled a list of the top 10 facts you might not know about one of the world’s biggest businessmen.

Number One: He Is The Wealthiest South African By Net Worth. The entrepreneur is worth about 22.3 billion dollars.

Number Two: He Is A Co-Founder of Paypal. The famous businessman is known as the man behind Tesla, but he originally got his start as one of the co-founders of Paypal!

Number Three: Musk Became a U.S. Citizen at 31. That’s right! Elon Musk was born in South Africa, and didn’t become a U.S. citizen until 2002 at the age of 31!

Number Four: He is a Grad-School Drop Out. Musk dropped out of grad school and then created his first company, Zip2. This company sold for $307 million in 1999.

Number Five: The Founder of SpaceX. The company, Space Exploration Technologies, creates and manufactures space launch vehicles. Eventually, Musk’s goal is to expand human life beyond Earth.

Number Six: Tony Stark? The character Iron Man, aka Tony Stark, was hugely inspired by Elon Musk. Musk even has a cameo in one of the Iron Man films.

Number Seven: Musk is a part of The Giving Pledge. By associating with this pledge, members promise to donate most of their wealth to philanthropic efforts. Other famous names to sign the pledge include Bill Gates, Mark Zuckerberg, and Sir Richard Branson.

Number Eight: Five Children and Three Marriages. The entrepreneur had five children with his first wife, Justine Musk. Together they had a set of twins and a set of triplets – what are the odds?! He then married and divorced his second wife, Talulah Riley, twice.

Number Nine: Musk Wants To Be In Love. “If I am not in love, I cannot be happy,” Musk confided in a Rolling Stone interview. A romantic at heart!

Number Ten: He is an Avid Supporter of Fighting Global Warming. Elon Musk says the main reason he founded Tesla Motors and SolarCity was to help combat Climate Change. He hopes for a greener future and has been a vocal opponent against the use of fossil fuels.

Featured: MusicSnake – No One Loved Me