123313110123 has 16 divisors (see below), whose sum is σ = 188308074240. Its totient is φ = 70313740896.

The previous prime is 123313110097. The next prime is 123313110139. The reversal of 123313110123 is 321011313321.

It is a happy number.

It is not a de Polignac number, because 123313110123 - 2⁹ = 123313109611 is a prime.

It is a super-2 number, since 2×123313110123² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123313110123.

It is not an unprimeable number, because it can be changed into a prime (123313110143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6277188 + ... + 6296801.

It is an arithmetic number, because the mean of its divisors is an integer number (11769254640).

Almost surely, 2^123313110123 is an apocalyptic number.

123313110123 is a deficient number, since it is larger than the sum of its proper divisors (64994964117).

123313110123 is a wasteful number, since it uses less digits than its factorization.

123313110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12574466.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123313110123 its reverse (321011313321), we get a palindrome (444324423444).

The spelling of 123313110123 in words is "one hundred twenty-three billion, three hundred thirteen million, one hundred ten thousand, one hundred twenty-three".