11328311 has 4 divisors (see below), whose sum is σ = 11341152. Its totient is φ = 11315472.

The previous prime is 11328301. The next prime is 11328349. The reversal of 11328311 is 11382311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11382311 = 19 ⋅599069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11328311 is a prime.

It is a super-2 number, since 2×11328311² = 256661260225442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11328301) 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, 4991 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (2835288).

Almost surely, 2^11328311 is an apocalyptic number.

11328311 is a deficient number, since it is larger than the sum of its proper divisors (12841).

11328311 is an equidigital number, since it uses as much as digits as its factorization.

11328311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840.

The product of its digits is 144, while the sum is 20.

The square root of 11328311 is about 3365.7556358120. The cubic root of 11328311 is about 224.5889515780.

The spelling of 11328311 in words is "eleven million, three hundred twenty-eight thousand, three hundred eleven".