123231034402439 has 2 divisors, whose sum is σ = 123231034402440. Its totient is φ = 123231034402438.

The previous prime is 123231034402361. The next prime is 123231034402561. The reversal of 123231034402439 is 934204430132321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123231034402439 - 2²⁸ = 123230765966983 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123231034402396 and 123231034402405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231034402339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615517201219 + 61615517201220.

It is an arithmetic number, because the mean of its divisors is an integer number (61615517201220).

Almost surely, 2^{123231034402439} is an apocalyptic number.

123231034402439 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231034402439 is an equidigital number, since it uses as much as digits as its factorization.

123231034402439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 123231034402439 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, thirty-four million, four hundred two thousand, four hundred thirty-nine".