12123223233 has 64 divisors (see below), whose sum is σ = 18341406720. Its totient is φ = 7059852800.

The previous prime is 12123223219. The next prime is 12123223237. The reversal of 12123223233 is 33232232121.

It is not a de Polignac number, because 12123223233 - 2⁸ = 12123222977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123223237) 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, 28933498 + ... + 28933916.

It is an arithmetic number, because the mean of its divisors is an integer number (286584480).

Almost surely, 2^12123223233 is an apocalyptic number.

It is an amenable number.

12123223233 is a deficient number, since it is larger than the sum of its proper divisors (6218183487).

12123223233 is a wasteful number, since it uses less digits than its factorization.

12123223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its digits is 2592, while the sum is 24.

Adding to 12123223233 its reverse (33232232121), we get a palindrome (45355455354).

The spelling of 12123223233 in words is "twelve billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred thirty-three".