23107118917 has 2 divisors, whose sum is σ = 23107118918. Its totient is φ = 23107118916.

The previous prime is 23107118873. The next prime is 23107118929. The reversal of 23107118917 is 71981170132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18244985476 + 4862133441 = 135074^2 + 69729^2 .

It is a cyclic number.

It is not a de Polignac number, because 23107118917 - 2⁷ = 23107118789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23107118917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23107118977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11553559458 + 11553559459.

It is an arithmetic number, because the mean of its divisors is an integer number (11553559459).

Almost surely, 2^23107118917 is an apocalyptic number.

It is an amenable number.

23107118917 is a deficient number, since it is larger than the sum of its proper divisors (1).

23107118917 is an equidigital number, since it uses as much as digits as its factorization.

23107118917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 40.

The spelling of 23107118917 in words is "twenty-three billion, one hundred seven million, one hundred eighteen thousand, nine hundred seventeen".