12031112332231 has 4 divisors (see below), whose sum is σ = 12031189277200. Its totient is φ = 12031035387264.

The previous prime is 12031112332223. The next prime is 12031112332243. The reversal of 12031112332231 is 13223321113021.

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 12031112332231 - 2³ = 12031112332223 is a prime.

It is a super-2 number, since 2×12031112332231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031112332196 and 12031112332205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031112332271) 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, 38237466 + ... + 38550823.

It is an arithmetic number, because the mean of its divisors is an integer number (3007797319300).

Almost surely, 2^{12031112332231} is an apocalyptic number.

12031112332231 is a deficient number, since it is larger than the sum of its proper divisors (76944969).

12031112332231 is an equidigital number, since it uses as much as digits as its factorization.

12031112332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76944968.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12031112332231 its reverse (13223321113021), we get a palindrome (25254433445252).

The spelling of 12031112332231 in words is "twelve trillion, thirty-one billion, one hundred twelve million, three hundred thirty-two thousand, two hundred thirty-one".