12031664233 has 4 divisors (see below), whose sum is σ = 12105478288. Its totient is φ = 11957850180.

The previous prime is 12031664221. The next prime is 12031664257. The reversal of 12031664233 is 33246613021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12031664233 - 2²⁵ = 11998109801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031664195 and 12031664204.

It is not an unprimeable number, because it can be changed into a prime (12031664833) 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, 36906783 + ... + 36907108.

It is an arithmetic number, because the mean of its divisors is an integer number (3026369572).

Almost surely, 2^12031664233 is an apocalyptic number.

It is an amenable number.

12031664233 is a deficient number, since it is larger than the sum of its proper divisors (73814055).

12031664233 is an equidigital number, since it uses as much as digits as its factorization.

12031664233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73814054.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 12031664233 in words is "twelve billion, thirty-one million, six hundred sixty-four thousand, two hundred thirty-three".