12443231223 has 24 divisors (see below), whose sum is σ = 18250003200. Its totient is φ = 8168008464.

The previous prime is 12443231197. The next prime is 12443231237. The reversal of 12443231223 is 32213234421.

12443231223 is a `hidden beast` number, since 1 + 2 + 4 + 432 + 3 + 1 + 223 = 666.

It is not a de Polignac number, because 12443231223 - 2¹⁶ = 12443165687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443231023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2251858 + ... + 2257376.

It is an arithmetic number, because the mean of its divisors is an integer number (760416800).

Almost surely, 2^12443231223 is an apocalyptic number.

12443231223 is a deficient number, since it is larger than the sum of its proper divisors (5806771977).

12443231223 is a wasteful number, since it uses less digits than its factorization.

12443231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331 (or 9328 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 12443231223 its reverse (32213234421), we get a palindrome (44656465644).

The spelling of 12443231223 in words is "twelve billion, four hundred forty-three million, two hundred thirty-one thousand, two hundred twenty-three".