23118961 has 2 divisors, whose sum is σ = 23118962. Its totient is φ = 23118960.

The previous prime is 23118943. The next prime is 23118967. The reversal of 23118961 is 16981132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 78961 = 4800^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 23118961 - 2¹⁹ = 22594673 is a prime.

It is not a weakly prime, because it can be changed into another prime (23118967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11559480 + 11559481.

It is an arithmetic number, because the mean of its divisors is an integer number (11559481).

Almost surely, 2^23118961 is an apocalyptic number.

It is an amenable number.

23118961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23118961 is an equidigital number, since it uses as much as digits as its factorization.

23118961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 23118961 is about 4808.2180690979. The cubic root of 23118961 is about 284.8761583625.

The spelling of 23118961 in words is "twenty-three million, one hundred eighteen thousand, nine hundred sixty-one".