123120122331100 has 72 divisors (see below), whose sum is σ = 269540717977440. Its totient is φ = 48811191367680.

The previous prime is 123120122331077. The next prime is 123120122331119. The reversal of 123120122331100 is 1133221021321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 747627369 + ... + 747792031.

It is an arithmetic number, because the mean of its divisors is an integer number (3743621083020).

Almost surely, 2^{123120122331100} is an apocalyptic number.

123120122331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123120122331100 is an abundant number, since it is smaller than the sum of its proper divisors (146420595646340).

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

123120122331100 is a wasteful number, since it uses less digits than its factorization.

123120122331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230959 (or 230952 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123120122331100 its reverse (1133221021321), we get a palindrome (124253343352421).

The spelling of 123120122331100 in words is "one hundred twenty-three trillion, one hundred twenty billion, one hundred twenty-two million, three hundred thirty-one thousand, one hundred".