123123110223223 has 16 divisors (see below), whose sum is σ = 134451803365920. Its totient is φ = 111817035187200.

The previous prime is 123123110223203. The next prime is 123123110223227. The reversal of 123123110223223 is 322322011321321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123123110223223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123123110223191 and 123123110223200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123123110223227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060973083 + ... + 1061089123.

It is an arithmetic number, because the mean of its divisors is an integer number (8403237710370).

Almost surely, 2^{123123110223223} is an apocalyptic number.

123123110223223 is a deficient number, since it is larger than the sum of its proper divisors (11328693142697).

123123110223223 is a wasteful number, since it uses less digits than its factorization.

123123110223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212658.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 123123110223223 its reverse (322322011321321), we get a palindrome (445445121544544).

The spelling of 123123110223223 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, one hundred ten million, two hundred twenty-three thousand, two hundred twenty-three".