123255443225534 has 16 divisors (see below), whose sum is σ = 189446638374000. Its totient is φ = 60107422943040.

The previous prime is 123255443225531. The next prime is 123255443225567. The reversal of 123255443225534 is 435522344552321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123255443225531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214505189 + ... + 215079024.

It is an arithmetic number, because the mean of its divisors is an integer number (11840414898375).

Almost surely, 2^{123255443225534} is an apocalyptic number.

123255443225534 is a deficient number, since it is larger than the sum of its proper divisors (66191195148466).

123255443225534 is a wasteful number, since it uses less digits than its factorization.

123255443225534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429587755.

The product of its digits is 17280000, while the sum is 50.

Adding to 123255443225534 its reverse (435522344552321), we get a palindrome (558777787777855).

The spelling of 123255443225534 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred forty-three million, two hundred twenty-five thousand, five hundred thirty-four".