23133212123 has 4 divisors (see below), whose sum is σ = 26437956720. Its totient is φ = 19828467528.

The previous prime is 23133212033. The next prime is 23133212129. The reversal of 23133212123 is 32121233132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23133212123 - 2⁸ = 23133211867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23133212129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652372288 + ... + 1652372301.

It is an arithmetic number, because the mean of its divisors is an integer number (6609489180).

Almost surely, 2^23133212123 is an apocalyptic number.

23133212123 is a deficient number, since it is larger than the sum of its proper divisors (3304744597).

23133212123 is an equidigital number, since it uses as much as digits as its factorization.

23133212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304744596.

The product of its digits is 1296, while the sum is 23.

Adding to 23133212123 its reverse (32121233132), we get a palindrome (55254445255).

The spelling of 23133212123 in words is "twenty-three billion, one hundred thirty-three million, two hundred twelve thousand, one hundred twenty-three".