23213331979 has 2 divisors, whose sum is σ = 23213331980. Its totient is φ = 23213331978.

The previous prime is 23213331961. The next prime is 23213332003. The reversal of 23213331979 is 97913331232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23213331979 - 2⁹ = 23213331467 is a prime.

It is not a weakly prime, because it can be changed into another prime (23213331949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606665989 + 11606665990.

It is an arithmetic number, because the mean of its divisors is an integer number (11606665990).

Almost surely, 2^23213331979 is an apocalyptic number.

23213331979 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213331979 is an equidigital number, since it uses as much as digits as its factorization.

23213331979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 43.

The spelling of 23213331979 in words is "twenty-three billion, two hundred thirteen million, three hundred thirty-one thousand, nine hundred seventy-nine".