13204921252 has 12 divisors (see below), whose sum is σ = 23109444316. Its totient is φ = 6602222880.

The previous prime is 13204921201. The next prime is 13204921313. The reversal of 13204921252 is 25212940231.

It can be written as a sum of positive squares in 2 ways, for example, as 12290826496 + 914094756 = 110864^2 + 30234^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139558 + ... + 214210.

Almost surely, 2^13204921252 is an apocalyptic number.

It is an amenable number.

13204921252 is a deficient number, since it is larger than the sum of its proper divisors (9904523064).

13204921252 is a wasteful number, since it uses less digits than its factorization.

13204921252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118878 (or 118876 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 13204921252 in words is "thirteen billion, two hundred four million, nine hundred twenty-one thousand, two hundred fifty-two".