13031313232 has 30 divisors (see below), whose sum is σ = 29370321258. Its totient is φ = 5584848192.

The previous prime is 13031313227. The next prime is 13031313257. The reversal of 13031313232 is 23231313031.

It can be written as a sum of positive squares in only one way, i.e., 6716785936 + 6314527296 = 81956^2 + 79464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8310003 + ... + 8311570.

Almost surely, 2^13031313232 is an apocalyptic number.

It is an amenable number.

13031313232 is an abundant number, since it is smaller than the sum of its proper divisors (16339008026).

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

13031313232 is a wasteful number, since it uses less digits than its factorization.

13031313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16621595 (or 16621582 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13031313232 its reverse (23231313031), we get a palindrome (36262626263).

The spelling of 13031313232 in words is "thirteen billion, thirty-one million, three hundred thirteen thousand, two hundred thirty-two".