12433331231 has 16 divisors (see below), whose sum is σ = 12966708480. Its totient is φ = 11908477440.

The previous prime is 12433331213. The next prime is 12433331233. The reversal of 12433331231 is 13213333421.

12433331231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12433331231 - 2¹⁴ = 12433314847 is a prime.

It is a super-2 number, since 2×12433331231² (a number of 21 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 12433331231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12433331233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4381145 + ... + 4383981.

It is an arithmetic number, because the mean of its divisors is an integer number (810419280).

Almost surely, 2^12433331231 is an apocalyptic number.

12433331231 is a deficient number, since it is larger than the sum of its proper divisors (533377249).

12433331231 is a wasteful number, since it uses less digits than its factorization.

12433331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274.

The product of its digits is 3888, while the sum is 26.

Adding to 12433331231 its reverse (13213333421), we get a palindrome (25646664652).

The spelling of 12433331231 in words is "twelve billion, four hundred thirty-three million, three hundred thirty-one thousand, two hundred thirty-one".