1311341312 has 18 divisors (see below), whose sum is σ = 2617560708. Its totient is φ = 655670528.

The previous prime is 1311341293. The next prime is 1311341327. The reversal of 1311341312 is 2131431131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560958 + ... + 2561469.

Almost surely, 2^1311341312 is an apocalyptic number.

It is an amenable number.

1311341312 is a deficient number, since it is larger than the sum of its proper divisors (1306219396).

1311341312 is an frugal number, since it uses more digits than its factorization.

1311341312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122443 (or 5122429 counting only the distinct ones).

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

The square root of 1311341312 is about 36212.4469209138. The cubic root of 1311341312 is about 1094.5574998750.

Adding to 1311341312 its reverse (2131431131), we get a palindrome (3442772443).

The spelling of 1311341312 in words is "one billion, three hundred eleven million, three hundred forty-one thousand, three hundred twelve".