123100223001231 has 16 divisors (see below), whose sum is σ = 187650947418624. Its totient is φ = 70316863862304.

The previous prime is 123100223001229. The next prime is 123100223001233. The reversal of 123100223001231 is 132100322001321.

It is an interprime number because it is at equal distance from previous prime (123100223001229) and next prime (123100223001233).

It is not a de Polignac number, because 123100223001231 - 2¹ = 123100223001229 is a prime.

It is a super-2 number, since 2×123100223001231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 123100223001198 and 123100223001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100223001233) 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 15 ways as a sum of consecutive naturals, for example, 1088305011 + ... + 1088418116.

It is an arithmetic number, because the mean of its divisors is an integer number (11728184213664).

Almost surely, 2^{123100223001231} is an apocalyptic number.

123100223001231 is a deficient number, since it is larger than the sum of its proper divisors (64550724417393).

123100223001231 is a wasteful number, since it uses less digits than its factorization.

123100223001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176725830.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123100223001231 its reverse (132100322001321), we get a palindrome (255200545002552).

The spelling of 123100223001231 in words is "one hundred twenty-three trillion, one hundred billion, two hundred twenty-three million, one thousand, two hundred thirty-one".