23216816923 has 2 divisors, whose sum is σ = 23216816924. Its totient is φ = 23216816922.

The previous prime is 23216816849. The next prime is 23216816933. The reversal of 23216816923 is 32961861232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23216816923 - 2¹³ = 23216808731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23216816923.

It is not a weakly prime, because it can be changed into another prime (23216816933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608408461 + 11608408462.

It is an arithmetic number, because the mean of its divisors is an integer number (11608408462).

Almost surely, 2^23216816923 is an apocalyptic number.

23216816923 is a deficient number, since it is larger than the sum of its proper divisors (1).

23216816923 is an equidigital number, since it uses as much as digits as its factorization.

23216816923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The spelling of 23216816923 in words is "twenty-three billion, two hundred sixteen million, eight hundred sixteen thousand, nine hundred twenty-three".