11085311 has 4 divisors (see below), whose sum is σ = 11384952. Its totient is φ = 10785672.

The previous prime is 11085253. The next prime is 11085313. The reversal of 11085311 is 11358011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11358011 = 7 ⋅1622573.

It is a cyclic number.

It is not a de Polignac number, because 11085311 - 2⁶ = 11085247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11085313) 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, 149765 + ... + 149838.

It is an arithmetic number, because the mean of its divisors is an integer number (2846238).

Almost surely, 2^11085311 is an apocalyptic number.

11085311 is a deficient number, since it is larger than the sum of its proper divisors (299641).

11085311 is an equidigital number, since it uses as much as digits as its factorization.

11085311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299640.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 11085311 is about 3329.4610675003. The cubic root of 11085311 is about 222.9714683948.

The spelling of 11085311 in words is "eleven million, eighty-five thousand, three hundred eleven".