1310312012 has 24 divisors (see below), whose sum is σ = 2336409600. Its totient is φ = 642869136.

The previous prime is 1310311993. The next prime is 1310312021. The reversal of 1310312012 is 2102130131.

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, 38789 + ... + 64227.

It is an arithmetic number, because the mean of its divisors is an integer number (97350400).

Almost surely, 2^1310312012 is an apocalyptic number.

It is an amenable number.

1310312012 is a deficient number, since it is larger than the sum of its proper divisors (1026097588).

1310312012 is a wasteful number, since it uses less digits than its factorization.

1310312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25685 (or 25683 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1310312012 is about 36198.2321667785. The cubic root of 1310312012 is about 1094.2710443391.

Adding to 1310312012 its reverse (2102130131), we get a palindrome (3412442143).

The spelling of 1310312012 in words is "one billion, three hundred ten million, three hundred twelve thousand, twelve".