1313012312 has 16 divisors (see below), whose sum is σ = 2502258000. Its totient is φ = 645743520.

The previous prime is 1313012299. The next prime is 1313012329. The reversal of 1313012312 is 2132103131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344812 + ... + 1345787.

It is an arithmetic number, because the mean of its divisors is an integer number (156391125).

Almost surely, 2^1313012312 is an apocalyptic number.

It is an amenable number.

1313012312 is a deficient number, since it is larger than the sum of its proper divisors (1189245688).

1313012312 is a wasteful number, since it uses less digits than its factorization.

1313012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690666 (or 2690662 counting only the distinct ones).

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

The square root of 1313012312 is about 36235.5117529751. The cubic root of 1313012312 is about 1095.0222223272.

Adding to 1313012312 its reverse (2132103131), we get a palindrome (3445115443).

The spelling of 1313012312 in words is "one billion, three hundred thirteen million, twelve thousand, three hundred twelve".