123155053533533 has 16 divisors (see below), whose sum is σ = 140875451857920. Its totient is φ = 105466401444096.

The previous prime is 123155053533511. The next prime is 123155053533539. The reversal of 123155053533533 is 335335350551321.

It is not a de Polignac number, because 123155053533533 - 2²⁸ = 123154785098077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123155053533539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34001285 + ... + 37448597.

It is an arithmetic number, because the mean of its divisors is an integer number (8804715741120).

Almost surely, 2^{123155053533533} is an apocalyptic number.

It is an amenable number.

123155053533533 is a deficient number, since it is larger than the sum of its proper divisors (17720398324387).

123155053533533 is a wasteful number, since it uses less digits than its factorization.

123155053533533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451916.

The product of its (nonzero) digits is 4556250, while the sum is 47.

The spelling of 123155053533533 in words is "one hundred twenty-three trillion, one hundred fifty-five billion, fifty-three million, five hundred thirty-three thousand, five hundred thirty-three".