12312233210231 has 4 divisors (see below), whose sum is σ = 12332123733000. Its totient is φ = 12292342687464.

The previous prime is 12312233210209. The next prime is 12312233210281. The reversal of 12312233210231 is 13201233221321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12312233210231 - 2¹⁰ = 12312233209207 is a prime.

It is a super-2 number, since 2×12312233210231² (a number of 27 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 12312233210231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312233210281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9945260456 + ... + 9945261693.

It is an arithmetic number, because the mean of its divisors is an integer number (3083030933250).

Almost surely, 2^{12312233210231} is an apocalyptic number.

12312233210231 is a deficient number, since it is larger than the sum of its proper divisors (19890522769).

12312233210231 is an equidigital number, since it uses as much as digits as its factorization.

12312233210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19890522768.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12312233210231 its reverse (13201233221321), we get a palindrome (25513466431552).

The spelling of 12312233210231 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-three million, two hundred ten thousand, two hundred thirty-one".