13321031313 has 16 divisors (see below), whose sum is σ = 18108806400. Its totient is φ = 8708379264.

The previous prime is 13321031263. The next prime is 13321031327. The reversal of 13321031313 is 31313012331.

It is a de Polignac number, because none of the positive numbers 2^k-13321031313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13321031313.

It is not an unprimeable number, because it can be changed into a prime (13321031363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137913 + ... + 213686.

It is an arithmetic number, because the mean of its divisors is an integer number (1131800400).

Almost surely, 2^13321031313 is an apocalyptic number.

It is an amenable number.

13321031313 is a deficient number, since it is larger than the sum of its proper divisors (4787775087).

13321031313 is a wasteful number, since it uses less digits than its factorization.

13321031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351848.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13321031313 its reverse (31313012331), we get a palindrome (44634043644).

The spelling of 13321031313 in words is "thirteen billion, three hundred twenty-one million, thirty-one thousand, three hundred thirteen".