23160631621 has 2 divisors, whose sum is σ = 23160631622. Its totient is φ = 23160631620.

The previous prime is 23160631591. The next prime is 23160631643. The reversal of 23160631621 is 12613606132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14346050625 + 8814580996 = 119775^2 + 93886^2 .

It is a cyclic number.

It is not a de Polignac number, because 23160631621 - 2⁵ = 23160631589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23160631321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11580315810 + 11580315811.

It is an arithmetic number, because the mean of its divisors is an integer number (11580315811).

Almost surely, 2^23160631621 is an apocalyptic number.

It is an amenable number.

23160631621 is a deficient number, since it is larger than the sum of its proper divisors (1).

23160631621 is an equidigital number, since it uses as much as digits as its factorization.

23160631621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 23160631621 in words is "twenty-three billion, one hundred sixty million, six hundred thirty-one thousand, six hundred twenty-one".