13531503204 has 36 divisors (see below), whose sum is σ = 34431167680. Its totient is φ = 4480628400.

The previous prime is 13531503109. The next prime is 13531503247. The reversal of 13531503204 is 40230513531.

13531503204 is a `hidden beast` number, since 135 + 3 + 1 + 503 + 20 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239184 + ... + 1250055.

Almost surely, 2^13531503204 is an apocalyptic number.

It is an amenable number.

13531503204 is an abundant number, since it is smaller than the sum of its proper divisors (20899664476).

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

13531503204 is a wasteful number, since it uses less digits than its factorization.

13531503204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489400 (or 2489395 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 13531503204 in words is "thirteen billion, five hundred thirty-one million, five hundred three thousand, two hundred four".