12313052520 has 64 divisors (see below), whose sum is σ = 37544739840. Its totient is φ = 3229651200.

The previous prime is 12313052503. The next prime is 12313052539. The reversal of 12313052520 is 2525031321.

It is a happy number.

It is a super-2 number, since 2×12313052520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833736 + ... + 848375.

It is an arithmetic number, because the mean of its divisors is an integer number (586636560).

Almost surely, 2^12313052520 is an apocalyptic number.

12313052520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313052520 is an abundant number, since it is smaller than the sum of its proper divisors (25231687320).

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

12313052520 is a wasteful number, since it uses less digits than its factorization.

12313052520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682186 (or 1682182 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12313052520 its reverse (2525031321), we get a palindrome (14838083841).

The spelling of 12313052520 in words is "twelve billion, three hundred thirteen million, fifty-two thousand, five hundred twenty".