12313111344 has 20 divisors (see below), whose sum is σ = 31808871096. Its totient is φ = 4104370432.

The previous prime is 12313111333. The next prime is 12313111379. The reversal of 12313111344 is 44311131321.

It is a happy number.

It is a super-2 number, since 2×12313111344² (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 a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 128261529 + ... + 128261624.

Almost surely, 2^12313111344 is an apocalyptic number.

It is an amenable number.

12313111344 is an abundant number, since it is smaller than the sum of its proper divisors (19495759752).

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

12313111344 is a wasteful number, since it uses less digits than its factorization.

12313111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256523164 (or 256523158 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 12313111344 its reverse (44311131321), we get a palindrome (56624242665).

The spelling of 12313111344 in words is "twelve billion, three hundred thirteen million, one hundred eleven thousand, three hundred forty-four".