13531113202 has 16 divisors (see below), whose sum is σ = 20364082200. Its totient is φ = 6743104128.

The previous prime is 13531113181. The next prime is 13531113203. The reversal of 13531113202 is 20231113531.

It can be written as a sum of positive squares in 4 ways, for example, as 12309680601 + 1221432601 = 110949^2 + 34949^2 .

It is not an unprimeable number, because it can be changed into a prime (13531113203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2941168 + ... + 2945764.

Almost surely, 2^13531113202 is an apocalyptic number.

13531113202 is a deficient number, since it is larger than the sum of its proper divisors (6832968998).

13531113202 is a wasteful number, since it uses less digits than its factorization.

13531113202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 13531113202 its reverse (20231113531), we get a palindrome (33762226733).

The spelling of 13531113202 in words is "thirteen billion, five hundred thirty-one million, one hundred thirteen thousand, two hundred two".