Title of world's richest person still belongs to Carlos Slim

Carlos Slim remained the world's richest person for a second year with estimated assets of $74 billion, according to Forbes magazine's annual global ranking of billionaires.

The net worth of Mexico's Slim, 71, whose holdings include the largest mobile phone operator in the Americas, rose $20.5 billion. Bill Gates, 55, chairman of Redmond, Washington-based Microsoft Corp. (MSFT), was second again as his net worth rose $3 billion to $56 billion. Warren Buffett, 80, chief executive officer of Omaha, Nebraska-based Berkshire Hathaway Inc. (BRK/A), held on to third place with $50 billion.

There were a record number of billionaires in 2011, with 1,210 in total, compared with the previous high of 1,125 in 2008, Bloomberg reports.

Asia now reportedly has more billionaires on the list than Europe, with 332 for the former and 300 for the latter. However, Moscow is home to more billionaires than any other city in the world, with 79. The United States continues to have the most billionaires, with 413.

The following is a list of the top ten richest people in world, according to Forbes, with their name, net worth, primary business, and country.

1) Carlos Slim Helu; $74 billion; Telecom; Mexico

2) Bill Gates; $56 billion; Microsoft; United States

3) Warren Buffett; $50 billion; Berkshire Hathaway; United States

4) Bernard Arnault; $41 billion; LVMH; France

5) Larry Ellison; $39.5 billion; Oracle; United States

6) Lakshmi Mittal; $31.1 billion; Steel; India

7) Amancio Ortega; $31 billion; Zara, Spain

8) Eike Batista; $30 billion; Mining, oil; Brazil

9) Mukesh Ambani; $27 billion; Petrochemicals, oil and gas; India

10) Christy Walton; $26.5 billion; Wal-Mart; United States, according to CBS News.