23131523299 has 2 divisors, whose sum is σ = 23131523300. Its totient is φ = 23131523298.

The previous prime is 23131523293. The next prime is 23131523357. The reversal of 23131523299 is 99232513132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23131523299 - 2²¹ = 23129426147 is a prime.

It is not a weakly prime, because it can be changed into another prime (23131523293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565761649 + 11565761650.

It is an arithmetic number, because the mean of its divisors is an integer number (11565761650).

Almost surely, 2^23131523299 is an apocalyptic number.

23131523299 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131523299 is an equidigital number, since it uses as much as digits as its factorization.

23131523299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The spelling of 23131523299 in words is "twenty-three billion, one hundred thirty-one million, five hundred twenty-three thousand, two hundred ninety-nine".