11105 has 4 divisors (see below), whose sum is σ = 13332. Its totient is φ = 8880.

The previous prime is 11093. The next prime is 11113. The reversal of 11105 is 50111.

It is a happy number.

11105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5776 + 5329 = 76^2 + 73^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11105 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11092 and 11101.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1106 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (3333).

2¹¹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

11105 is a deficient number, since it is larger than the sum of its proper divisors (2227).

11105 is an equidigital number, since it uses as much as digits as its factorization.

11105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 11105 is about 105.3802638068. The cubic root of 11105 is about 22.3103399400.

Adding to 11105 its reverse (50111), we get a palindrome (61216).

The spelling of 11105 in words is "eleven thousand, one hundred five".