11043 has 8 divisors (see below), whose sum is σ = 16400. Its totient is φ = 7344.

The previous prime is 11027. The next prime is 11047. The reversal of 11043 is 34011.

11043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11043 - 2⁴ = 11027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 178 + ... + 231.

It is an arithmetic number, because the mean of its divisors is an integer number (2050).

2¹¹⁰⁴³ is an apocalyptic number.

11043 is a deficient number, since it is larger than the sum of its proper divisors (5357).

11043 is an equidigital number, since it uses as much as digits as its factorization.

11043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 11043 is about 105.0856793288. The cubic root of 11043 is about 22.2687423613.

Adding to 11043 its reverse (34011), we get a palindrome (45054).

It can be divided in two parts, 110 and 43, that added together give a triangular number (153 = T₁₇).

The spelling of 11043 in words is "eleven thousand, forty-three", and thus it is an iban number.