123355204552124 has 6 divisors (see below), whose sum is σ = 215871607966224. Its totient is φ = 61677602276060.

The previous prime is 123355204552117. The next prime is 123355204552127. The reversal of 123355204552124 is 421255402553321.

It is a super-2 number, since 2×123355204552124² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123355204552127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15419400569012 + ... + 15419400569019.

It is an arithmetic number, because the mean of its divisors is an integer number (35978601327704).

Almost surely, 2^{123355204552124} is an apocalyptic number.

It is an amenable number.

123355204552124 is a deficient number, since it is larger than the sum of its proper divisors (92516403414100).

123355204552124 is a wasteful number, since it uses less digits than its factorization.

123355204552124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30838801138035 (or 30838801138033 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 123355204552124 in words is "one hundred twenty-three trillion, three hundred fifty-five billion, two hundred four million, five hundred fifty-two thousand, one hundred twenty-four".