1311317395 has 16 divisors (see below), whose sum is σ = 1660500000. Its totient is φ = 991381248.

The previous prime is 1311317393. The next prime is 1311317419. The reversal of 1311317395 is 5937131131.

1311317395 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1311317395 - 2¹ = 1311317393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311317395.

It is not an unprimeable number, because it can be changed into a prime (1311317393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21981 + ... + 55729.

It is an arithmetic number, because the mean of its divisors is an integer number (103781250).

Almost surely, 2^1311317395 is an apocalyptic number.

1311317395 is a deficient number, since it is larger than the sum of its proper divisors (349182605).

1311317395 is a wasteful number, since it uses less digits than its factorization.

1311317395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34182.

The product of its digits is 8505, while the sum is 34.

The square root of 1311317395 is about 36212.1166876503. The cubic root of 1311317395 is about 1094.5508454440.

The spelling of 1311317395 in words is "one billion, three hundred eleven million, three hundred seventeen thousand, three hundred ninety-five".