12531425115 has 64 divisors (see below), whose sum is σ = 22522655232. Its totient is φ = 5896934400.

The previous prime is 12531425107. The next prime is 12531425141. The reversal of 12531425115 is 51152413521.

It is not a de Polignac number, because 12531425115 - 2³ = 12531425107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1328004 + ... + 1337406.

It is an arithmetic number, because the mean of its divisors is an integer number (351916488).

Almost surely, 2^12531425115 is an apocalyptic number.

12531425115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12531425115 is a deficient number, since it is larger than the sum of its proper divisors (9991230117).

12531425115 is a wasteful number, since it uses less digits than its factorization.

12531425115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its digits is 6000, while the sum is 30.

Adding to 12531425115 its reverse (51152413521), we get a palindrome (63683838636).

The spelling of 12531425115 in words is "twelve billion, five hundred thirty-one million, four hundred twenty-five thousand, one hundred fifteen".