12312031033 has 8 divisors (see below), whose sum is σ = 12334341600. Its totient is φ = 12289738080.

The previous prime is 12312031001. The next prime is 12312031037. The reversal of 12312031033 is 33013021321.

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 12312031033 - 2⁵ = 12312031001 is a prime.

It is a super-2 number, since 2×12312031033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12312031033.

It is not an unprimeable number, because it can be changed into a prime (12312031037) 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, 3001618 + ... + 3005716.

It is an arithmetic number, because the mean of its divisors is an integer number (1541792700).

Almost surely, 2^12312031033 is an apocalyptic number.

It is an amenable number.

12312031033 is a deficient number, since it is larger than the sum of its proper divisors (22310567).

12312031033 is an equidigital number, since it uses as much as digits as its factorization.

12312031033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8807.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12312031033 its reverse (33013021321), we get a palindrome (45325052354).

The spelling of 12312031033 in words is "twelve billion, three hundred twelve million, thirty-one thousand, thirty-three".