12313121023081 has 2 divisors, whose sum is σ = 12313121023082. Its totient is φ = 12313121023080.

The previous prime is 12313121022959. The next prime is 12313121023111. The reversal of 12313121023081 is 18032012131321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11930696279056 + 382424744025 = 3454084^2 + 618405^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313121023081 - 2⁷ = 12313121022953 is a prime.

It is a super-2 number, since 2×12313121023081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12313121023981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156560511540 + 6156560511541.

It is an arithmetic number, because the mean of its divisors is an integer number (6156560511541).

Almost surely, 2^{12313121023081} is an apocalyptic number.

It is an amenable number.

12313121023081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313121023081 is an equidigital number, since it uses as much as digits as its factorization.

12313121023081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 12313121023081 in words is "twelve trillion, three hundred thirteen billion, one hundred twenty-one million, twenty-three thousand, eighty-one".