13012505331 has 16 divisors (see below), whose sum is σ = 19911552000. Its totient is φ = 7404602688.

The previous prime is 13012505327. The next prime is 13012505353. The reversal of 13012505331 is 13350521031.

It is not a de Polignac number, because 13012505331 - 2² = 13012505327 is a prime.

It is a super-2 number, since 2×13012505331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13012505371) 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, 1291306 + ... + 1301343.

It is an arithmetic number, because the mean of its divisors is an integer number (1244472000).

Almost surely, 2^13012505331 is an apocalyptic number.

13012505331 is a deficient number, since it is larger than the sum of its proper divisors (6899046669).

13012505331 is a wasteful number, since it uses less digits than its factorization.

13012505331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592898.

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 13012505331 in words is "thirteen billion, twelve million, five hundred five thousand, three hundred thirty-one".