123318937268836 has 81 divisors (see below), whose sum is σ = 228800976869241. Its totient is φ = 58153105669824.

The previous prime is 123318937268753. The next prime is 123318937268867. The reversal of 123318937268836 is 638862739813321.

It is a happy number.

The square root of 123318937268836 is 11104906.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 70001836224100 + 53317101044736 = 8366710^2 + 7301856^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 37290272695 + ... + 37290276001.

Almost surely, 2^{123318937268836} is an apocalyptic number.

123318937268836 is the 11104906-th square number.

It is an amenable number.

123318937268836 is a deficient number, since it is larger than the sum of its proper divisors (105482039600405).

123318937268836 is an frugal number, since it uses more digits than its factorization.

123318937268836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810 (or 3405 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 70.

It can be divided in two parts, 1233189 and 37268836, that added together give a square (38502025 = 6205²).

The spelling of 123318937268836 in words is "one hundred twenty-three trillion, three hundred eighteen billion, nine hundred thirty-seven million, two hundred sixty-eight thousand, eight hundred thirty-six".