11611 has 4 divisors (see below), whose sum is σ = 12312. Its totient is φ = 10912.

The previous prime is 11597. The next prime is 11617.

11611 is nontrivially palindromic in base 10.

11611 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 11611 - 2⁵ = 11579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11617) 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, 325 + ... + 358.

It is an arithmetic number, because the mean of its divisors is an integer number (3078).

2¹¹⁶¹¹ is an apocalyptic number.

11611 is a deficient number, since it is larger than the sum of its proper divisors (701).

11611 is an equidigital number, since it uses as much as digits as its factorization.

11611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 6, while the sum is 10.

The square root of 11611 is about 107.7543502602. The cubic root of 11611 is about 22.6441770398.

The spelling of 11611 in words is "eleven thousand, six hundred eleven".