12431203312 has 40 divisors (see below), whose sum is σ = 26285496192. Its totient is φ = 5648299200.

The previous prime is 12431203297. The next prime is 12431203327. The reversal of 12431203312 is 21330213421.

It is an interprime number because it is at equal distance from previous prime (12431203297) and next prime (12431203327).

It is a Harshad number since it is a multiple of its sum of digits (22).

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 7 ways as a sum of consecutive naturals, for example, 478563 + ... + 503869.

Almost surely, 2^12431203312 is an apocalyptic number.

It is an amenable number.

12431203312 is an abundant number, since it is smaller than the sum of its proper divisors (13854292880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12431203312 is a wasteful number, since it uses less digits than its factorization.

12431203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28117 (or 28111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12431203312 its reverse (21330213421), we get a palindrome (33761416733).

The spelling of 12431203312 in words is "twelve billion, four hundred thirty-one million, two hundred three thousand, three hundred twelve".