23311112123 has 16 divisors (see below), whose sum is σ = 25647874560. Its totient is φ = 21052346016.

The previous prime is 23311112089. The next prime is 23311112161. The reversal of 23311112123 is 32121111332.

It is a happy number.

It is not a de Polignac number, because 23311112123 - 2⁸ = 23311111867 is a prime.

It is a super-2 number, since 2×23311112123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23311112095 and 23311112104.

It is not an unprimeable number, because it can be changed into a prime (23311112323) 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, 2230436 + ... + 2240862.

It is an arithmetic number, because the mean of its divisors is an integer number (1602992160).

Almost surely, 2^23311112123 is an apocalyptic number.

23311112123 is a deficient number, since it is larger than the sum of its proper divisors (2336762437).

23311112123 is a wasteful number, since it uses less digits than its factorization.

23311112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14146.

The product of its digits is 216, while the sum is 20.

Adding to 23311112123 its reverse (32121111332), we get a palindrome (55432223455).

The spelling of 23311112123 in words is "twenty-three billion, three hundred eleven million, one hundred twelve thousand, one hundred twenty-three".