12322431238 has 24 divisors (see below), whose sum is σ = 20615566608. Its totient is φ = 5491153248.

The previous prime is 12322431227. The next prime is 12322431257. The reversal of 12322431238 is 83213422321.

12322431238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 259906 + ... + 303637.

It is an arithmetic number, because the mean of its divisors is an integer number (858981942).

Almost surely, 2^12322431238 is an apocalyptic number.

12322431238 is a deficient number, since it is larger than the sum of its proper divisors (8293135370).

12322431238 is a wasteful number, since it uses less digits than its factorization.

12322431238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563616 (or 563587 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

Adding to 12322431238 its reverse (83213422321), we get a palindrome (95535853559).

The spelling of 12322431238 in words is "twelve billion, three hundred twenty-two million, four hundred thirty-one thousand, two hundred thirty-eight".