12312233233 has 4 divisors (see below), whose sum is σ = 12326114880. Its totient is φ = 12298351588.

The previous prime is 12312233189. The next prime is 12312233239. The reversal of 12312233233 is 33233221321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33233221321 = 29 ⋅1145973149.

It is a cyclic number.

It is not a de Polignac number, because 12312233233 - 2¹⁷ = 12312102161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312233198 and 12312233207.

It is not an unprimeable number, because it can be changed into a prime (12312233239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6939493 + ... + 6941266.

It is an arithmetic number, because the mean of its divisors is an integer number (3081528720).

Almost surely, 2^12312233233 is an apocalyptic number.

It is an amenable number.

12312233233 is a deficient number, since it is larger than the sum of its proper divisors (13881647).

12312233233 is an equidigital number, since it uses as much as digits as its factorization.

12312233233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13881646.

The product of its digits is 3888, while the sum is 25.

Adding to 12312233233 its reverse (33233221321), we get a palindrome (45545454554).

The spelling of 12312233233 in words is "twelve billion, three hundred twelve million, two hundred thirty-three thousand, two hundred thirty-three".