9901131202 has 24 divisors (see below), whose sum is σ = 15325345980. Its totient is φ = 4797045600.

The previous prime is 9901131181. The next prime is 9901131203. The reversal of 9901131202 is 2021311099.

It can be written as a sum of positive squares in 2 ways, for example, as 8546817601 + 1354313601 = 92449^2 + 36801^2 .

It is not an unprimeable number, because it can be changed into a prime (9901131203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435124 + ... + 457312.

Almost surely, 2^9901131202 is an apocalyptic number.

9901131202 is a deficient number, since it is larger than the sum of its proper divisors (5424214778).

9901131202 is a wasteful number, since it uses less digits than its factorization.

9901131202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22386 (or 22339 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 9901131202 is about 99504.4280522229. The cubic root of 9901131202 is about 2147.3109487302.

The spelling of 9901131202 in words is "nine billion, nine hundred one million, one hundred thirty-one thousand, two hundred two".