20231312367613 has 2 divisors, whose sum is σ = 20231312367614. Its totient is φ = 20231312367612.

The previous prime is 20231312367593. The next prime is 20231312367659. The reversal of 20231312367613 is 31676321313202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18037705514724 + 2193606852889 = 4247082^2 + 1481083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20231312367613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20231312367313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115656183806 + 10115656183807.

It is an arithmetic number, because the mean of its divisors is an integer number (10115656183807).

Almost surely, 2^{20231312367613} is an apocalyptic number.

It is an amenable number.

20231312367613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231312367613 is an equidigital number, since it uses as much as digits as its factorization.

20231312367613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 20231312367613 in words is "twenty trillion, two hundred thirty-one billion, three hundred twelve million, three hundred sixty-seven thousand, six hundred thirteen".