12002011312 has 20 divisors (see below), whose sum is σ = 23342322960. Its totient is φ = 5978186048.

The previous prime is 12002011283. The next prime is 12002011319. The reversal of 12002011312 is 21311020021.

It is a super-2 number, since 2×12002011312² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12002011292 and 12002011301.

It is not an unprimeable number, because it can be changed into a prime (12002011319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421887 + ... + 1430302.

It is an arithmetic number, because the mean of its divisors is an integer number (1167116148).

Almost surely, 2^12002011312 is an apocalyptic number.

It is an amenable number.

12002011312 is a deficient number, since it is larger than the sum of its proper divisors (11340311648).

12002011312 is a wasteful number, since it uses less digits than its factorization.

12002011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852460 (or 2852454 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12002011312 its reverse (21311020021), we get a palindrome (33313031333).

The spelling of 12002011312 in words is "twelve billion, two million, eleven thousand, three hundred twelve".