12313232011021 has 2 divisors, whose sum is σ = 12313232011022. Its totient is φ = 12313232011020.

The previous prime is 12313232010991. The next prime is 12313232011049. The reversal of 12313232011021 is 12011023231321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11763432005796 + 549800005225 = 3429786^2 + 741485^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313232011021 - 2⁹ = 12313232010509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12313232010983 and 12313232011001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12313232011921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156616005510 + 6156616005511.

It is an arithmetic number, because the mean of its divisors is an integer number (6156616005511).

Almost surely, 2^{12313232011021} is an apocalyptic number.

It is an amenable number.

12313232011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313232011021 is an equidigital number, since it uses as much as digits as its factorization.

12313232011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12313232011021 its reverse (12011023231321), we get a palindrome (24324255242342).

The spelling of 12313232011021 in words is "twelve trillion, three hundred thirteen billion, two hundred thirty-two million, eleven thousand, twenty-one".