12031331233 has 8 divisors (see below), whose sum is σ = 12230231040. Its totient is φ = 11833847520.

The previous prime is 12031331209. The next prime is 12031331281. The reversal of 12031331233 is 33213313021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12031331233 - 2⁹ = 12031330721 is a prime.

It is a super-2 number, since 2×12031331233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031334233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336885 + ... + 370882.

It is an arithmetic number, because the mean of its divisors is an integer number (1528778880).

Almost surely, 2^12031331233 is an apocalyptic number.

It is an amenable number.

12031331233 is a deficient number, since it is larger than the sum of its proper divisors (198899807).

12031331233 is an equidigital number, since it uses as much as digits as its factorization.

12031331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708047.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12031331233 its reverse (33213313021), we get a palindrome (45244644254).

The spelling of 12031331233 in words is "twelve billion, thirty-one million, three hundred thirty-one thousand, two hundred thirty-three".