123012204432791 has 2 divisors, whose sum is σ = 123012204432792. Its totient is φ = 123012204432790.

The previous prime is 123012204432779. The next prime is 123012204432823. The reversal of 123012204432791 is 197234402210321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123012204432791 - 2³⁰ = 123011130690967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123012204431791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506102216395 + 61506102216396.

It is an arithmetic number, because the mean of its divisors is an integer number (61506102216396).

Almost surely, 2^{123012204432791} is an apocalyptic number.

123012204432791 is a deficient number, since it is larger than the sum of its proper divisors (1).

123012204432791 is an equidigital number, since it uses as much as digits as its factorization.

123012204432791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 123012204432791 in words is "one hundred twenty-three trillion, twelve billion, two hundred four million, four hundred thirty-two thousand, seven hundred ninety-one".