123542254131200 has 72 divisors (see below), whose sum is σ = 306309989398140. Its totient is φ = 49416901632000.

The previous prime is 123542254131119. The next prime is 123542254131203. The reversal of 123542254131200 is 2131452245321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542254131203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206416126 + ... + 1206518525.

Almost surely, 2^{123542254131200} is an apocalyptic number.

123542254131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123542254131200 is an abundant number, since it is smaller than the sum of its proper divisors (182767735266940).

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

123542254131200 is an equidigital number, since it uses as much as digits as its factorization.

123542254131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412934683 (or 2412934658 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 123542254131200 in words is "one hundred twenty-three trillion, five hundred forty-two billion, two hundred fifty-four million, one hundred thirty-one thousand, two hundred".