11310391 has 2 divisors, whose sum is σ = 11310392. Its totient is φ = 11310390.

The previous prime is 11310367. The next prime is 11310413. The reversal of 11310391 is 19301311.

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-11310391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11310331) by changing a digit.

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, 5655195 + 5655196.

It is an arithmetic number, because the mean of its divisors is an integer number (5655196).

Almost surely, 2^11310391 is an apocalyptic number.

11310391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11310391 is an equidigital number, since it uses as much as digits as its factorization.

11310391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 11310391 is about 3363.0924756837. The cubic root of 11310391 is about 224.4704650111.

The spelling of 11310391 in words is "eleven million, three hundred ten thousand, three hundred ninety-one".