1312313012 has 24 divisors (see below), whose sum is σ = 2311545600. Its totient is φ = 651886496.

The previous prime is 1312312997. The next prime is 1312313029. The reversal of 1312313012 is 2103132131.

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, 419189 + ... + 422307.

It is an arithmetic number, because the mean of its divisors is an integer number (96314400).

Almost surely, 2^1312313012 is an apocalyptic number.

It is an amenable number.

1312313012 is a deficient number, since it is larger than the sum of its proper divisors (999232588).

1312313012 is a wasteful number, since it uses less digits than its factorization.

1312313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775 (or 3773 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1312313012 is about 36225.8610939754. The cubic root of 1312313012 is about 1094.8277877391.

Adding to 1312313012 its reverse (2103132131), we get a palindrome (3415445143).

The spelling of 1312313012 in words is "one billion, three hundred twelve million, three hundred thirteen thousand, twelve".