23320000391 has 2 divisors, whose sum is σ = 23320000392. Its totient is φ = 23320000390.

The previous prime is 23320000331. The next prime is 23320000421. The reversal of 23320000391 is 19300002332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23320000391 - 2¹⁴ = 23319984007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320000321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660000195 + 11660000196.

It is an arithmetic number, because the mean of its divisors is an integer number (11660000196).

Almost surely, 2^23320000391 is an apocalyptic number.

23320000391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320000391 is an equidigital number, since it uses as much as digits as its factorization.

23320000391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The spelling of 23320000391 in words is "twenty-three billion, three hundred twenty million, three hundred ninety-one", and thus it is an aban number.