11243 has 2 divisors, whose sum is σ = 11244.
Its totient is φ = 11242.
The previous prime is 11239. The next prime is 11251. The reversal of 11243 is 34211.
It is a happy number.
11243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is an emirp because it is prime and its reverse (34211) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 11243 - 22 = 11239 is a prime.
It is not a weakly prime, because it can be changed into another prime (11213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621 + 5622.
It is an arithmetic number, because the mean of its divisors is an integer number (5622).
211243 is an apocalyptic number.
11243 is a deficient number, since it is larger than the sum of its proper divisors (1).
11243 is an equidigital number, since it uses as much as digits as its factorization.
11243 is an evil number, because the sum of its binary digits is even.
The product of its digits is 24, while the sum is 11.
The square root of 11243 is about 106.0330137269.
The cubic root of 11243 is about 22.4023753859.
Adding to 11243 its reverse (34211), we get a palindrome (45454).
The spelling of 11243 in words is "eleven thousand, two hundred forty-three", and thus it is an iban number.