11047 has 2 divisors, whose sum is σ = 11048.
Its totient is φ = 11046.
The previous prime is 11027. The next prime is 11057. The reversal of 11047 is 74011.
Adding to 11047 its reverse (74011), we get a palindrome (85058).
It can be divided in two parts, 1104 and 7, that added together give a palindrome (1111).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 11047 - 211 = 8999 is a prime.
11047 is a lucky number.
It is a nialpdrome in base 11.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (11027) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5523 + 5524.
It is an arithmetic number, because the mean of its divisors is an integer number (5524).
211047 is an apocalyptic number.
11047 is a deficient number, since it is larger than the sum of its proper divisors (1).
11047 is an equidigital number, since it uses as much as digits as its factorization.
11047 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 28, while the sum is 13.
The square root of 11047 is about 105.1047096947.
The cubic root of 11047 is about 22.2714307677.
The spelling of 11047 in words is "eleven thousand, forty-seven", and thus it is an iban number.