13031281125 has 96 divisors (see below), whose sum is σ = 24236319744. Its totient is φ = 6732000000.

The previous prime is 13031281093. The next prime is 13031281127. The reversal of 13031281125 is 52118213031.

It is not a de Polignac number, because 13031281125 - 2⁵ = 13031281093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031281127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6963940 + ... + 6965810.

It is an arithmetic number, because the mean of its divisors is an integer number (252461664).

Almost surely, 2^13031281125 is an apocalyptic number.

13031281125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13031281125 is a deficient number, since it is larger than the sum of its proper divisors (11205038619).

13031281125 is a wasteful number, since it uses less digits than its factorization.

13031281125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2071 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 13031281125 its reverse (52118213031), we get a palindrome (65149494156).

The spelling of 13031281125 in words is "thirteen billion, thirty-one million, two hundred eighty-one thousand, one hundred twenty-five".