13512525231 has 16 divisors (see below), whose sum is σ = 18846040320. Its totient is φ = 8595597120.

The previous prime is 13512525211. The next prime is 13512525251. The reversal of 13512525231 is 13252521531.

It is an interprime number because it is at equal distance from previous prime (13512525211) and next prime (13512525251).

It is not a de Polignac number, because 13512525231 - 2⁹ = 13512524719 is a prime.

It is a super-2 number, since 2×13512525231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512525211) 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, 211185 + ... + 267626.

It is an arithmetic number, because the mean of its divisors is an integer number (1177877520).

Almost surely, 2^13512525231 is an apocalyptic number.

13512525231 is a deficient number, since it is larger than the sum of its proper divisors (5333515089).

13512525231 is a wasteful number, since it uses less digits than its factorization.

13512525231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479246.

The product of its digits is 9000, while the sum is 30.

The spelling of 13512525231 in words is "thirteen billion, five hundred twelve million, five hundred twenty-five thousand, two hundred thirty-one".