1313312236 has 24 divisors (see below), whose sum is σ = 2404452960. Its totient is φ = 626474112.

The previous prime is 1313312227. The next prime is 1313312251. The reversal of 1313312236 is 6322133131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313312236.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17440 + ... + 54136.

It is an arithmetic number, because the mean of its divisors is an integer number (100185540).

Almost surely, 2^1313312236 is an apocalyptic number.

It is an amenable number.

1313312236 is a deficient number, since it is larger than the sum of its proper divisors (1091140724).

1313312236 is a wasteful number, since it uses less digits than its factorization.

1313312236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37113 (or 37111 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 1313312236 is about 36239.6500534980. The cubic root of 1313312236 is about 1095.1055925639.

Adding to 1313312236 its reverse (6322133131), we get a palindrome (7635445367).

The spelling of 1313312236 in words is "one billion, three hundred thirteen million, three hundred twelve thousand, two hundred thirty-six".