11310091 has 4 divisors (see below), whose sum is σ = 12180112. Its totient is φ = 10440072.

The previous prime is 11310059. The next prime is 11310097. The reversal of 11310091 is 19001311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11310091 - 2⁵ = 11310059 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11310097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434991 + ... + 435016.

It is an arithmetic number, because the mean of its divisors is an integer number (3045028).

Almost surely, 2^11310091 is an apocalyptic number.

11310091 is a deficient number, since it is larger than the sum of its proper divisors (870021).

11310091 is an equidigital number, since it uses as much as digits as its factorization.

11310091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870020.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 11310091 is about 3363.0478735813. The cubic root of 11310091 is about 224.4684803542.

The spelling of 11310091 in words is "eleven million, three hundred ten thousand, ninety-one".