12000223031231 has 4 divisors (see below), whose sum is σ = 12000232210200. Its totient is φ = 12000213852264.

The previous prime is 12000223031213. The next prime is 12000223031267. The reversal of 12000223031231 is 13213032200021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000223031231 is a prime.

It is a super-2 number, since 2×12000223031231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000223051231) 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, 2221016 + ... + 5378973.

It is an arithmetic number, because the mean of its divisors is an integer number (3000058052550).

Almost surely, 2^{12000223031231} is an apocalyptic number.

12000223031231 is a deficient number, since it is larger than the sum of its proper divisors (9178969).

12000223031231 is an equidigital number, since it uses as much as digits as its factorization.

12000223031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178968.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12000223031231 its reverse (13213032200021), we get a palindrome (25213255231252).

The spelling of 12000223031231 in words is "twelve trillion, two hundred twenty-three million, thirty-one thousand, two hundred thirty-one".