13013131312 has 20 divisors (see below), whose sum is σ = 26539939480. Its totient is φ = 6164114688.

The previous prime is 13013131309. The next prime is 13013131363. The reversal of 13013131312 is 21313131031.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 13013131312.

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, 21402873 + ... + 21403480.

It is an arithmetic number, because the mean of its divisors is an integer number (1326996974).

Almost surely, 2^13013131312 is an apocalyptic number.

It is an amenable number.

13013131312 is an abundant number, since it is smaller than the sum of its proper divisors (13526808168).

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

13013131312 is a wasteful number, since it uses less digits than its factorization.

13013131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42806380 (or 42806374 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13013131312 its reverse (21313131031), we get a palindrome (34326262343).

The spelling of 13013131312 in words is "thirteen billion, thirteen million, one hundred thirty-one thousand, three hundred twelve".