13031131304 has 32 divisors (see below), whose sum is σ = 26071680000. Its totient is φ = 6088079232.

The previous prime is 13031131303. The next prime is 13031131307. The reversal of 13031131304 is 40313113031.

It is not an unprimeable number, because it can be changed into a prime (13031131303) 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, 576104 + ... + 598295.

It is an arithmetic number, because the mean of its divisors is an integer number (814740000).

Almost surely, 2^13031131304 is an apocalyptic number.

It is an amenable number.

13031131304 is an abundant number, since it is smaller than the sum of its proper divisors (13040548696).

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

13031131304 is a wasteful number, since it uses less digits than its factorization.

13031131304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174497 (or 1174493 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13031131304 its reverse (40313113031), we get a palindrome (53344244335).

The spelling of 13031131304 in words is "thirteen billion, thirty-one million, one hundred thirty-one thousand, three hundred four".