23013637139 has 2 divisors, whose sum is σ = 23013637140. Its totient is φ = 23013637138.

The previous prime is 23013637117. The next prime is 23013637151. The reversal of 23013637139 is 93173631032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23013637139 - 2⁸ = 23013636883 is a prime.

It is not a weakly prime, because it can be changed into another prime (23013637939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506818569 + 11506818570.

It is an arithmetic number, because the mean of its divisors is an integer number (11506818570).

Almost surely, 2^23013637139 is an apocalyptic number.

23013637139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013637139 is an equidigital number, since it uses as much as digits as its factorization.

23013637139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 38.

The spelling of 23013637139 in words is "twenty-three billion, thirteen million, six hundred thirty-seven thousand, one hundred thirty-nine".