12001312312 has 64 divisors (see below), whose sum is σ = 24756802560. Its totient is φ = 5408985600.

The previous prime is 12001312303. The next prime is 12001312321. The reversal of 12001312312 is 21321310021.

It is an interprime number because it is at equal distance from previous prime (12001312303) and next prime (12001312321).

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 15 ways as a sum of consecutive naturals, for example, 5552512 + ... + 5554672.

It is an arithmetic number, because the mean of its divisors is an integer number (386825040).

Almost surely, 2^12001312312 is an apocalyptic number.

It is an amenable number.

12001312312 is an abundant number, since it is smaller than the sum of its proper divisors (12755490248).

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

12001312312 is a wasteful number, since it uses less digits than its factorization.

12001312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12001312312 its reverse (21321310021), we get a palindrome (33322622333).

The spelling of 12001312312 in words is "twelve billion, one million, three hundred twelve thousand, three hundred twelve".