11019 has 4 divisors (see below), whose sum is σ = 14696.
Its totient is φ = 7344.
The previous prime is 11003. The next prime is 11027. The reversal of 11019 is 91011.
11019 is digitally balanced in base 2, 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 not a de Polignac number, because 11019 - 24 = 11003 is a prime.
It is a super-2 number, since 2×110192 = 242836722, which contains 22 as substring.
It is a D-number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10995 and 11013.
It is not an unprimeable number, because it can be changed into a prime (11059) 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 3 ways as a sum of consecutive naturals, for example, 1834 + ... + 1839.
It is an arithmetic number, because the mean of its divisors is an integer number (3674).
211019 is an apocalyptic number.
11019 is a deficient number, since it is larger than the sum of its proper divisors (3677).
11019 is an equidigital number, since it uses as much as digits as its factorization.
11019 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3676.
The product of its (nonzero) digits is 9, while the sum is 12.
The square root of 11019 is about 104.9714246831.
The cubic root of 11019 is about 22.2525982742.
The spelling of 11019 in words is "eleven thousand, nineteen".