23312605819 has 2 divisors, whose sum is σ = 23312605820. Its totient is φ = 23312605818.

The previous prime is 23312605793. The next prime is 23312605853. The reversal of 23312605819 is 91850621332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23312605819 - 2⁷ = 23312605691 is a prime.

It is a super-2 number, since 2×23312605819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23312605879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656302909 + 11656302910.

It is an arithmetic number, because the mean of its divisors is an integer number (11656302910).

Almost surely, 2^23312605819 is an apocalyptic number.

23312605819 is a deficient number, since it is larger than the sum of its proper divisors (1).

23312605819 is an equidigital number, since it uses as much as digits as its factorization.

23312605819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 23312605819 in words is "twenty-three billion, three hundred twelve million, six hundred five thousand, eight hundred nineteen".