13031125125 has 32 divisors (see below), whose sum is σ = 22383289344. Its totient is φ = 6725736000.

The previous prime is 13031125117. The next prime is 13031125169. The reversal of 13031125125 is 52152113031.

It is not a de Polignac number, because 13031125125 - 2³ = 13031125117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13031125095 and 13031125104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548854 + ... + 572103.

It is an arithmetic number, because the mean of its divisors is an integer number (699477792).

Almost surely, 2^13031125125 is an apocalyptic number.

13031125125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13031125125 is a deficient number, since it is larger than the sum of its proper divisors (9352164219).

13031125125 is a wasteful number, since it uses less digits than its factorization.

13031125125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121006 (or 1120996 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13031125125 its reverse (52152113031), we get a palindrome (65183238156).

The spelling of 13031125125 in words is "thirteen billion, thirty-one million, one hundred twenty-five thousand, one hundred twenty-five".