It is a happy number.
11143 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 Duffinian number.
It is a plaindrome in base 15.
It is a nialpdrome in base 11.
It is a congruent number.
211143 is an apocalyptic number.
11143 is a wasteful number, since it uses less digits than its factorization.
11143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1024.
The square root of 11143 is about 105.5604092451. The cubic root of 11143 is about 22.3357587525.
Adding to 11143 its reverse (34111), we get a palindrome (45254).
The spelling of 11143 in words is "eleven thousand, one hundred forty-three", and thus it is an iban number.