12313132021331 has 4 divisors (see below), whose sum is σ = 12435044219664. Its totient is φ = 12191219823000.

The previous prime is 12313132021327. The next prime is 12313132021409. The reversal of 12313132021331 is 13312023131321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12313132021331 - 2² = 12313132021327 is a prime.

It is a super-2 number, since 2×12313132021331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12313132021331.

It is not an unprimeable number, because it can be changed into a prime (12313132021831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60956099015 + ... + 60956099216.

It is an arithmetic number, because the mean of its divisors is an integer number (3108761054916).

Almost surely, 2^{12313132021331} is an apocalyptic number.

12313132021331 is a deficient number, since it is larger than the sum of its proper divisors (121912198333).

12313132021331 is a wasteful number, since it uses less digits than its factorization.

12313132021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121912198332.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12313132021331 its reverse (13312023131321), we get a palindrome (25625155152652).

The spelling of 12313132021331 in words is "twelve trillion, three hundred thirteen billion, one hundred thirty-two million, twenty-one thousand, three hundred thirty-one".