123135438001504 has 72 divisors (see below), whose sum is σ = 259487715880008. Its totient is φ = 57503751352320.

The previous prime is 123135438001489. The next prime is 123135438001523. The reversal of 123135438001504 is 405100834531321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49608429 + ... + 52031404.

It is an arithmetic number, because the mean of its divisors is an integer number (3603996053889).

Almost surely, 2^{123135438001504} is an apocalyptic number.

It is an amenable number.

123135438001504 is an abundant number, since it is smaller than the sum of its proper divisors (136352277878504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123135438001504 is a wasteful number, since it uses less digits than its factorization.

123135438001504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101640008 (or 101639983 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 123135438001504 in words is "one hundred twenty-three trillion, one hundred thirty-five billion, four hundred thirty-eight million, one thousand, five hundred four".