12231203233231 has 2 divisors, whose sum is σ = 12231203233232. Its totient is φ = 12231203233230.

The previous prime is 12231203233219. The next prime is 12231203233289. The reversal of 12231203233231 is 13233230213221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12231203233231 - 2²⁵ = 12231169678799 is a prime.

It is a super-2 number, since 2×12231203233231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12231203233231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231203234231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115601616615 + 6115601616616.

It is an arithmetic number, because the mean of its divisors is an integer number (6115601616616).

Almost surely, 2^{12231203233231} is an apocalyptic number.

12231203233231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231203233231 is an equidigital number, since it uses as much as digits as its factorization.

12231203233231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12231203233231 its reverse (13233230213221), we get a palindrome (25464433446452).

The spelling of 12231203233231 in words is "twelve trillion, two hundred thirty-one billion, two hundred three million, two hundred thirty-three thousand, two hundred thirty-one".