12001003312 has 80 divisors (see below), whose sum is σ = 24033461760. Its totient is φ = 5802465024.

The previous prime is 12001003279. The next prime is 12001003331. The reversal of 12001003312 is 21330010021.

It is a junction number, because it is equal to n+sod(n) for n = 12001003292 and 12001003301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39091063 + ... + 39091369.

It is an arithmetic number, because the mean of its divisors is an integer number (300418272).

Almost surely, 2^12001003312 is an apocalyptic number.

It is an amenable number.

12001003312 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12001003312 is a wasteful number, since it uses less digits than its factorization.

12001003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12001003312 its reverse (21330010021), we get a palindrome (33331013333).

The spelling of 12001003312 in words is "twelve billion, one million, three thousand, three hundred twelve".