12313320 has 32 divisors (see below), whose sum is σ = 36940320. Its totient is φ = 3283520.

The previous prime is 12313319. The next prime is 12313333. The reversal of 12313320 is 2331321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12313320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51186 + ... + 51425.

It is an arithmetic number, because the mean of its divisors is an integer number (1154385).

Almost surely, 2^12313320 is an apocalyptic number.

12313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313320 is an abundant number, since it is smaller than the sum of its proper divisors (24627000).

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

12313320 is a wasteful number, since it uses less digits than its factorization.

12313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102625 (or 102621 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12313320 is about 3509.0340551212. The cubic root of 12313320 is about 230.9183197284.

Adding to 12313320 its reverse (2331321), we get a palindrome (14644641).

The spelling of 12313320 in words is "twelve million, three hundred thirteen thousand, three hundred twenty".