23313121939 has 2 divisors, whose sum is σ = 23313121940. Its totient is φ = 23313121938.

The previous prime is 23313121919. The next prime is 23313121963. The reversal of 23313121939 is 93912131332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23313121939 - 2⁵ = 23313121907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23313121898 and 23313121907.

It is not a weakly prime, because it can be changed into another prime (23313121919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656560969 + 11656560970.

It is an arithmetic number, because the mean of its divisors is an integer number (11656560970).

Almost surely, 2^23313121939 is an apocalyptic number.

23313121939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23313121939 is an equidigital number, since it uses as much as digits as its factorization.

23313121939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 37.

The spelling of 23313121939 in words is "twenty-three billion, three hundred thirteen million, one hundred twenty-one thousand, nine hundred thirty-nine".