123231332003231 has 4 divisors (see below), whose sum is σ = 130480233885792. Its totient is φ = 115982430120672.

The previous prime is 123231332003207. The next prime is 123231332003249. The reversal of 123231332003231 is 132300233132321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123231332003231 is a prime.

It is a super-2 number, since 2×123231332003231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123231332003194 and 123231332003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231332003291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3624450941255 + ... + 3624450941288.

It is an arithmetic number, because the mean of its divisors is an integer number (32620058471448).

Almost surely, 2^{123231332003231} is an apocalyptic number.

123231332003231 is a deficient number, since it is larger than the sum of its proper divisors (7248901882561).

123231332003231 is an equidigital number, since it uses as much as digits as its factorization.

123231332003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248901882560.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 123231332003231 its reverse (132300233132321), we get a palindrome (255531565135552).

The spelling of 123231332003231 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, three hundred thirty-two million, three thousand, two hundred thirty-one".