123231121131104 has 48 divisors (see below), whose sum is σ = 277272497930400. Its totient is φ = 52812866125824.

The previous prime is 123231121131103. The next prime is 123231121131113. The reversal of 123231121131104 is 401131121132321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231121131103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23291942 + ... + 28088730.

It is an arithmetic number, because the mean of its divisors is an integer number (5776510373550).

Almost surely, 2^{123231121131104} is an apocalyptic number.

123231121131104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123231121131104 is an abundant number, since it is smaller than the sum of its proper divisors (154041376799296).

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

123231121131104 is a wasteful number, since it uses less digits than its factorization.

123231121131104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911495 (or 4911487 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 123231121131104 its reverse (401131121132321), we get a palindrome (524362242263425).

The spelling of 123231121131104 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred four".