12431212312 has 16 divisors (see below), whose sum is σ = 23478660360. Its totient is φ = 6170236224.

The previous prime is 12431212301. The next prime is 12431212349. The reversal of 12431212312 is 21321213421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5670078 + ... + 5672269.

Almost surely, 2^12431212312 is an apocalyptic number.

It is an amenable number.

12431212312 is a deficient number, since it is larger than the sum of its proper divisors (11047448048).

12431212312 is a wasteful number, since it uses less digits than its factorization.

12431212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342490 (or 11342486 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 12431212312 its reverse (21321213421), we get a palindrome (33752425733).

The spelling of 12431212312 in words is "twelve billion, four hundred thirty-one million, two hundred twelve thousand, three hundred twelve".