123550154103242 has 64 divisors (see below), whose sum is σ = 191811613593600. Its totient is φ = 59647674240000.

The previous prime is 123550154103169. The next prime is 123550154103247. The reversal of 123550154103242 is 242301451055321.

It is a junction number, because it is equal to n+sod(n) for n = 123550154103196 and 123550154103205.

It is not an unprimeable number, because it can be changed into a prime (123550154103247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6239581742 + ... + 6239601542.

It is an arithmetic number, because the mean of its divisors is an integer number (2997056462400).

Almost surely, 2^{123550154103242} is an apocalyptic number.

123550154103242 is a deficient number, since it is larger than the sum of its proper divisors (68261459490358).

123550154103242 is a wasteful number, since it uses less digits than its factorization.

123550154103242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22023.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 123550154103242 in words is "one hundred twenty-three trillion, five hundred fifty billion, one hundred fifty-four million, one hundred three thousand, two hundred forty-two".