1312304012 has 12 divisors (see below), whose sum is σ = 2358600720. Its totient is φ = 638418096.

The previous prime is 1312304011. The next prime is 1312304039. The reversal of 1312304012 is 2104032131.

It is a super-2 number, since 2×1312304012² = 3444283639822592288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312304011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4433312 + ... + 4433607.

It is an arithmetic number, because the mean of its divisors is an integer number (196550060).

Almost surely, 2^1312304012 is an apocalyptic number.

It is an amenable number.

1312304012 is a deficient number, since it is larger than the sum of its proper divisors (1046296708).

1312304012 is a wasteful number, since it uses less digits than its factorization.

1312304012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866960 (or 8866958 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312304012 is about 36225.7368731127. The cubic root of 1312304012 is about 1094.8252849133.

Adding to 1312304012 its reverse (2104032131), we get a palindrome (3416336143).

The spelling of 1312304012 in words is "one billion, three hundred twelve million, three hundred four thousand, twelve".