12515210031 has 16 divisors (see below), whose sum is σ = 16783718400. Its totient is φ = 8295221760.

The previous prime is 12515210017. The next prime is 12515210033. The reversal of 12515210031 is 13001251521.

It is not a de Polignac number, because 12515210031 - 2¹⁵ = 12515177263 is a prime.

It is a super-2 number, since 2×12515210031² (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 (12515210033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 364786 + ... + 397616.

It is an arithmetic number, because the mean of its divisors is an integer number (1048982400).

Almost surely, 2^12515210031 is an apocalyptic number.

12515210031 is a deficient number, since it is larger than the sum of its proper divisors (4268508369).

12515210031 is a wasteful number, since it uses less digits than its factorization.

12515210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33566.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 12515210031 its reverse (13001251521), we get a palindrome (25516461552).

The spelling of 12515210031 in words is "twelve billion, five hundred fifteen million, two hundred ten thousand, thirty-one".