123332231132421 has 4 divisors (see below), whose sum is σ = 164442974843232. Its totient is φ = 82221487421612.

The previous prime is 123332231132387. The next prime is 123332231132441. The reversal of 123332231132421 is 124231132233321.

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 123332231132421 - 2⁹ = 123332231131909 is a prime.

It is a super-2 number, since 2×123332231132421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123332231132441) 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, 20555371855401 + ... + 20555371855406.

It is an arithmetic number, because the mean of its divisors is an integer number (41110743710808).

Almost surely, 2^{123332231132421} is an apocalyptic number.

It is an amenable number.

123332231132421 is a deficient number, since it is larger than the sum of its proper divisors (41110743710811).

123332231132421 is an equidigital number, since it uses as much as digits as its factorization.

123332231132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41110743710810.

The product of its digits is 31104, while the sum is 33.

Adding to 123332231132421 its reverse (124231132233321), we get a palindrome (247563363365742).

The spelling of 123332231132421 in words is "one hundred twenty-three trillion, three hundred thirty-two billion, two hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-one".