12000003312 has 40 divisors (see below), whose sum is σ = 33818192640. Its totient is φ = 3636364480.

The previous prime is 12000003283. The next prime is 12000003329. The reversal of 12000003312 is 21330000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11363112 + ... + 11364167.

It is an arithmetic number, because the mean of its divisors is an integer number (845454816).

Almost surely, 2^12000003312 is an apocalyptic number.

12000003312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000003312 is an abundant number, since it is smaller than the sum of its proper divisors (21818189328).

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

12000003312 is a wasteful number, since it uses less digits than its factorization.

12000003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22727301 (or 22727295 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12000003312 its reverse (21330000021), we get a palindrome (33330003333).

The spelling of 12000003312 in words is "twelve billion, three thousand, three hundred twelve".