1311368 has 16 divisors (see below), whose sum is σ = 2566080. Its totient is φ = 627088.

The previous prime is 1311367. The next prime is 1311377. The reversal of 1311368 is 8631131.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1311367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3380 + ... + 3747.

It is an arithmetic number, because the mean of its divisors is an integer number (160380).

2^1311368 is an apocalyptic number.

It is an amenable number.

1311368 is a deficient number, since it is larger than the sum of its proper divisors (1254712).

1311368 is a wasteful number, since it uses less digits than its factorization.

1311368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156 (or 7152 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 1311368 is about 1145.1497718639. The cubic root of 1311368 is about 109.4564925186.

Adding to 1311368 its reverse (8631131), we get a palindrome (9942499).

The spelling of 1311368 in words is "one million, three hundred eleven thousand, three hundred sixty-eight".