123123203220231 has 24 divisors (see below), whose sum is σ = 182187820616256. Its totient is φ = 80077705839360.

The previous prime is 123123203220211. The next prime is 123123203220257. The reversal of 123123203220231 is 132022302321321.

123123203220231 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 2 + 3 + 203 + 220 + 231 = 666.

It is not a de Polignac number, because 123123203220231 - 2⁴² = 118725156709127 is a prime.

It is a super-2 number, since 2×123123203220231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123123203220195 and 123123203220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123123203220211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7180386 + ... + 17257008.

It is an arithmetic number, because the mean of its divisors is an integer number (7591159192344).

Almost surely, 2^{123123203220231} is an apocalyptic number.

123123203220231 is a deficient number, since it is larger than the sum of its proper divisors (59064617396025).

123123203220231 is a wasteful number, since it uses less digits than its factorization.

123123203220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109783 (or 10109780 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123123203220231 its reverse (132022302321321), we get a palindrome (255145505541552).

The spelling of 123123203220231 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred three million, two hundred twenty thousand, two hundred thirty-one".