123054124533221 has 4 divisors (see below), whose sum is σ = 140633285180832. Its totient is φ = 105474963885612.

The previous prime is 123054124533161. The next prime is 123054124533253. The reversal of 123054124533221 is 122335421450321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123054124533221 - 2²⁶ = 123054057424357 is a prime.

It is a super-2 number, since 2×123054124533221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123054124533281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8789580323795 + ... + 8789580323808.

It is an arithmetic number, because the mean of its divisors is an integer number (35158321295208).

Almost surely, 2^{123054124533221} is an apocalyptic number.

It is an amenable number.

123054124533221 is a deficient number, since it is larger than the sum of its proper divisors (17579160647611).

123054124533221 is an equidigital number, since it uses as much as digits as its factorization.

123054124533221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17579160647610.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 123054124533221 its reverse (122335421450321), we get a palindrome (245389545983542).

The spelling of 123054124533221 in words is "one hundred twenty-three trillion, fifty-four billion, one hundred twenty-four million, five hundred thirty-three thousand, two hundred twenty-one".