12033223231 has 2 divisors, whose sum is σ = 12033223232. Its totient is φ = 12033223230.

The previous prime is 12033223193. The next prime is 12033223247. The reversal of 12033223231 is 13232233021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12033223231 - 2²⁹ = 11496352319 is a prime.

It is a super-2 number, since 2×12033223231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12033233231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016611615 + 6016611616.

It is an arithmetic number, because the mean of its divisors is an integer number (6016611616).

Almost surely, 2^12033223231 is an apocalyptic number.

12033223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12033223231 is an equidigital number, since it uses as much as digits as its factorization.

12033223231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12033223231 its reverse (13232233021), we get a palindrome (25265456252).

The spelling of 12033223231 in words is "twelve billion, thirty-three million, two hundred twenty-three thousand, two hundred thirty-one".