23112212123 has 64 divisors (see below), whose sum is σ = 32758010880. Its totient is φ = 15704409600.

The previous prime is 23112212119. The next prime is 23112212141. The reversal of 23112212123 is 32121221132.

It is not a de Polignac number, because 23112212123 - 2² = 23112212119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23112212095 and 23112212104.

It is not an unprimeable number, because it can be changed into a prime (23112212143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7549013 + ... + 7552073.

It is an arithmetic number, because the mean of its divisors is an integer number (511843920).

Almost surely, 2^23112212123 is an apocalyptic number.

23112212123 is a deficient number, since it is larger than the sum of its proper divisors (9645798757).

23112212123 is a wasteful number, since it uses less digits than its factorization.

23112212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508.

The product of its digits is 288, while the sum is 20.

Adding to 23112212123 its reverse (32121221132), we get a palindrome (55233433255).

Subtracting 23112212123 from its reverse (32121221132), we obtain a palindrome (9009009009).

The spelling of 23112212123 in words is "twenty-three billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-three".