For the 40th year Forbes magazine has ranked the wealthiest people on Earth for its annual World’s Billionaires List.
This year there are a record 3,428 billionaires making the grade with a combined net worth of $20.1 trillion - that’s up $4 trillion from last year and is the largest concentration of wealth ever recorded.
Once again Elon Musk tops the list by a considerable distance, with 20 people now worth more than $100 billion (up from just 15 last year).
There are 390 newcomers, including Beyoncé Knowles-Carter, Dr. Dre and Roger Federer.
Meanwhile American President Donald Trump’s net worth rose 27 per cent to $6.5 billion, making him the 645th richest person in the world.
Here are the top 20 richest billionaires according to the list.
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13. Michael Dell - $141 billion
Founder, chairman, and CEO of Dell Technologies - one of the world's largest technology infrastructure companies - Michael Dell has built a fortune estimated at $141 billion. | AFP via Getty Images

14. Alice Walton - $134 billion
Yet another Walmart heir comes in 14th place. Alice Walton is the only daughter of Walmart founder Sam Walton and is worth around $134 billion. | Getty Images

15. Steve Ballmer - $126 billion
Another Microsoft billionare, Steve Ballmer ran the computer company from 2000-2014. The LA Clippers basketball team owner has a net worth of around $126 billion. | Getty Images

16. Carlos Slim Helú and family - $125 billion.
Mexico's richest person, Carlos Slim Helú and his family control América Móvil, Latin America's biggest mobile telecom firm. He's worth around $125 billion. | Getty Images

