12531510204 has 24 divisors (see below), whose sum is σ = 29243956560. Its totient is φ = 4176632064.

The previous prime is 12531510181. The next prime is 12531510209. The reversal of 12531510204 is 40201513521.

It is a happy number.

It is a super-2 number, since 2×12531510204² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531510209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36162 + ... + 162390.

It is an arithmetic number, because the mean of its divisors is an integer number (1218498190).

Almost surely, 2^12531510204 is an apocalyptic number.

It is an amenable number.

12531510204 is an abundant number, since it is smaller than the sum of its proper divisors (16712446356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12531510204 is a wasteful number, since it uses less digits than its factorization.

12531510204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134509 (or 134507 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 12531510204 in words is "twelve billion, five hundred thirty-one million, five hundred ten thousand, two hundred four".