123454115455254 has 16 divisors (see below), whose sum is σ = 251566876777392. Its totient is φ = 40374930840608.

The previous prime is 123454115455243. The next prime is 123454115455261. The reversal of 123454115455254 is 452554511454321.

It is a junction number, because it is equal to n+sod(n) for n = 123454115455197 and 123454115455206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194110244109 + ... + 194110244744.

It is an arithmetic number, because the mean of its divisors is an integer number (15722929798587).

Almost surely, 2^{123454115455254} is an apocalyptic number.

123454115455254 is an abundant number, since it is smaller than the sum of its proper divisors (128112761322138).

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

123454115455254 is a wasteful number, since it uses less digits than its factorization.

123454115455254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388220488911.

The product of its digits is 9600000, while the sum is 51.

The spelling of 123454115455254 in words is "one hundred twenty-three trillion, four hundred fifty-four billion, one hundred fifteen million, four hundred fifty-five thousand, two hundred fifty-four".