13131323104 has 24 divisors (see below), whose sum is σ = 25894504440. Its totient is φ = 6554941056.

The previous prime is 13131323081. The next prime is 13131323119. The reversal of 13131323104 is 40132313131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315094 + ... + 354325.

It is an arithmetic number, because the mean of its divisors is an integer number (1078937685).

Almost surely, 2^13131323104 is an apocalyptic number.

It is an amenable number.

13131323104 is a deficient number, since it is larger than the sum of its proper divisors (12763181336).

13131323104 is an equidigital number, since it uses as much as digits as its factorization.

13131323104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670042 (or 670034 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13131323104 its reverse (40132313131), we get a palindrome (53263636235).

The spelling of 13131323104 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred four".