1311413312 has 56 divisors (see below), whose sum is σ = 2905000032. Its totient is φ = 582220800.

The previous prime is 1311413297. The next prime is 1311413357. The reversal of 1311413312 is 2133141131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8612 + ... + 51932.

Almost surely, 2^1311413312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311413312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452500016).

1311413312 is an abundant number, since it is smaller than the sum of its proper divisors (1593586720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311413312 is a wasteful number, since it uses less digits than its factorization.

1311413312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43387 (or 43377 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1311413312 is about 36213.4410405860. The cubic root of 1311413312 is about 1094.5775319589.

Adding to 1311413312 its reverse (2133141131), we get a palindrome (3444554443).

The spelling of 1311413312 in words is "one billion, three hundred eleven million, four hundred thirteen thousand, three hundred twelve".