12531015310 has 96 divisors (see below), whose sum is σ = 25372569600. Its totient is φ = 4451198400.

The previous prime is 12531015281. The next prime is 12531015347. The reversal of 12531015310 is 1351013521.

It is a super-2 number, since 2×12531015310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13635031 + ... + 13635949.

It is an arithmetic number, because the mean of its divisors is an integer number (264297600).

Almost surely, 2^12531015310 is an apocalyptic number.

12531015310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12531015310 is an abundant number, since it is smaller than the sum of its proper divisors (12841554290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12531015310 is a wasteful number, since it uses less digits than its factorization.

12531015310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 12531015310 its reverse (1351013521), we get a palindrome (13882028831).

The spelling of 12531015310 in words is "twelve billion, five hundred thirty-one million, fifteen thousand, three hundred ten".