123113311223 has 24 divisors (see below), whose sum is σ = 144655488000. Its totient is φ = 102637768464.

The previous prime is 123113311187. The next prime is 123113311241. The reversal of 123113311223 is 322113311321.

It is not a de Polignac number, because 123113311223 - 2¹⁶ = 123113245687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113311273) 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, 3073478 + ... + 3113276.

It is an arithmetic number, because the mean of its divisors is an integer number (6027312000).

Almost surely, 2^123113311223 is an apocalyptic number.

123113311223 is a deficient number, since it is larger than the sum of its proper divisors (21542176777).

123113311223 is an equidigital number, since it uses as much as digits as its factorization.

123113311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40131 (or 40088 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

Adding to 123113311223 its reverse (322113311321), we get a palindrome (445226622544).

The spelling of 123113311223 in words is "one hundred twenty-three billion, one hundred thirteen million, three hundred eleven thousand, two hundred twenty-three".