12431330312 has 16 divisors (see below), whose sum is σ = 23589573840. Its totient is φ = 6140777296.

The previous prime is 12431330297. The next prime is 12431330321. The reversal of 12431330312 is 21303313421.

It is a super-3 number, since 3×12431330312³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9360278 + ... + 9361605.

It is an arithmetic number, because the mean of its divisors is an integer number (1474348365).

Almost surely, 2^12431330312 is an apocalyptic number.

It is an amenable number.

12431330312 is a deficient number, since it is larger than the sum of its proper divisors (11158243528).

12431330312 is a wasteful number, since it uses less digits than its factorization.

12431330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721972 (or 18721968 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12431330312 its reverse (21303313421), we get a palindrome (33734643733).

The spelling of 12431330312 in words is "twelve billion, four hundred thirty-one million, three hundred thirty thousand, three hundred twelve".