11002 has 4 divisors (see below), whose sum is σ = 16506. Its totient is φ = 5500.

The previous prime is 10993. The next prime is 11003. The reversal of 11002 is 20011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6241 + 4761 = 79^2 + 69^2 .

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 10982 and 11000.

It is not an unprimeable number, because it can be changed into a prime (11003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749 + ... + 2752.

2¹¹⁰⁰² is an apocalyptic number.

11002 is a deficient number, since it is larger than the sum of its proper divisors (5504).

11002 is an equidigital number, since it uses as much as digits as its factorization.

11002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 11002 is about 104.8904190096. The cubic root of 11002 is about 22.2411486907.

Adding to 11002 its reverse (20011), we get a palindrome (31013).

Subtracting 11002 from its reverse (20011), we obtain a palindrome (9009).

Multiplying 11002 by its reverse (20011), we get a palindrome (220161022).

The spelling of 11002 in words is "eleven thousand, two", and thus it is an iban number.