123616133433571 has 2 divisors, whose sum is σ = 123616133433572. Its totient is φ = 123616133433570.

The previous prime is 123616133433547. The next prime is 123616133433587. The reversal of 123616133433571 is 175334331616321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123616133433571 - 2²⁷ = 123615999215843 is a prime.

It is not a weakly prime, because it can be changed into another prime (123616133433511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61808066716785 + 61808066716786.

It is an arithmetic number, because the mean of its divisors is an integer number (61808066716786).

Almost surely, 2^{123616133433571} is an apocalyptic number.

123616133433571 is a deficient number, since it is larger than the sum of its proper divisors (1).

123616133433571 is an equidigital number, since it uses as much as digits as its factorization.

123616133433571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 49.

The spelling of 123616133433571 in words is "one hundred twenty-three trillion, six hundred sixteen billion, one hundred thirty-three million, four hundred thirty-three thousand, five hundred seventy-one".