101,000,000,000
0.165
12112 or 12 112
One billion.
Ways to write one billion is: one billion,1 billion,1,000,000,000,you can write it in roman numeral several different ways,with tally marks, etc.
One quintillion.
To write one billion three million, you would write out the number 1,003,000,000.
1.billion
As a number it is: 1,800,000,000 = 1.8 billion
To write 2300 billion in numbers, you can express it as 2,300,000,000,000. This is done by recognizing that one billion is equal to one thousand million, so you multiply 2300 by one billion.
As a number: 1,000,000,000 = one billion
1,000,000,001
one billion