123542525213020 has 12 divisors (see below), whose sum is σ = 259439302947384. Its totient is φ = 49417010085200.

The previous prime is 123542525213011. The next prime is 123542525213027. The reversal of 123542525213020 is 20312525245321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542525213027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088563130306 + ... + 3088563130345.

It is an arithmetic number, because the mean of its divisors is an integer number (21619941912282).

Almost surely, 2^{123542525213020} is an apocalyptic number.

123542525213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123542525213020 is an abundant number, since it is smaller than the sum of its proper divisors (135896777734364).

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

123542525213020 is a wasteful number, since it uses less digits than its factorization.

123542525213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177126260660 (or 6177126260658 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 123542525213020 in words is "one hundred twenty-three trillion, five hundred forty-two billion, five hundred twenty-five million, two hundred thirteen thousand, twenty".