Writing the numerals one thousand 3 billion is impossible.
However, if you meant 3billion one thousand, it goes like this.
3,000,001,000
3 thousand million billion 3,000,000,000,000,000,000 or 3 sextillion
3,000,170,030
3,000,215,000
3 billion six hundred one thousand fifteen = 3,000,601,0153,000,601,015 in standard form is written 3.000601015 x 109
6,000,003,408
1,060,003,027
6,000,003,408
437 billion is written 437,000,000,000. 3 billion is written 3,000,000,000. To write it as one number, add them together. The answer is 440,000,000,000. If you want to write 437 billion 3 million, it is 437,003,000,000.
If i write it out the way u ask it would be 3 trillion in other words: 3,000,000,000,000
3 600 030 000
300,000,000,000,000,000,000 or 3 x 1020
4,503,056,008