1311307 has 2 divisors, whose sum is σ = 1311308. Its totient is φ = 1311306.

The previous prime is 1311301. The next prime is 1311311. The reversal of 1311307 is 7031131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655653 + 655654.

It is an arithmetic number, because the mean of its divisors is an integer number (655654).

2^1311307 is an apocalyptic number.

1311307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311307 is an equidigital number, since it uses as much as digits as its factorization.

1311307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 1311307 is about 1145.1231374835. The cubic root of 1311307 is about 109.4547953216.

Adding to 1311307 its reverse (7031131), we get a palindrome (8342438).

The spelling of 1311307 in words is "one million, three hundred eleven thousand, three hundred seven".