8315138023 has 2 divisors, whose sum is σ = 8315138024. Its totient is φ = 8315138022.

The previous prime is 8315138011. The next prime is 8315138059. The reversal of 8315138023 is 3208315138.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8315138023 - 2⁵ = 8315137991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8315138023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8315138003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157569011 + 4157569012.

It is an arithmetic number, because the mean of its divisors is an integer number (4157569012).

Almost surely, 2^8315138023 is an apocalyptic number.

8315138023 is a deficient number, since it is larger than the sum of its proper divisors (1).

8315138023 is an equidigital number, since it uses as much as digits as its factorization.

8315138023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 8315138023 is about 91187.3786387129. The cubic root of 8315138023 is about 2025.9240225794.

The spelling of 8315138023 in words is "eight billion, three hundred fifteen million, one hundred thirty-eight thousand, twenty-three".