12313086561 has 16 divisors (see below), whose sum is σ = 18263029120. Its totient is φ = 8199085680.

The previous prime is 12313086557. The next prime is 12313086601. The reversal of 12313086561 is 16568031321.

12313086561 is a `hidden beast` number, since 1 + 2 + 3 + 13 + 0 + 86 + 561 = 666.

It is not a de Polignac number, because 12313086561 - 2² = 12313086557 is a prime.

It is a super-2 number, since 2×12313086561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313086061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244285 + ... + 290346.

It is an arithmetic number, because the mean of its divisors is an integer number (1141439320).

Almost surely, 2^12313086561 is an apocalyptic number.

It is an amenable number.

12313086561 is a deficient number, since it is larger than the sum of its proper divisors (5949942559).

12313086561 is an equidigital number, since it uses as much as digits as its factorization.

12313086561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535493 (or 535487 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 12313086561 in words is "twelve billion, three hundred thirteen million, eighty-six thousand, five hundred sixty-one".