11002081 has 2 divisors, whose sum is σ = 11002082. Its totient is φ = 11002080.

The previous prime is 11002067. The next prime is 11002129. The reversal of 11002081 is 18020011.

11002081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 665856 = 3215^2 + 816^2 .

It is an emirp because it is prime and its reverse (18020011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11002081 - 2⁷ = 11001953 is a prime.

It is a super-2 number, since 2×11002081² = 242091572661122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501040 + 5501041.

It is an arithmetic number, because the mean of its divisors is an integer number (5501041).

Almost surely, 2^11002081 is an apocalyptic number.

It is an amenable number.

11002081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002081 is an equidigital number, since it uses as much as digits as its factorization.

11002081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 11002081 is about 3316.9384980732. The cubic root of 11002081 is about 222.4120327259.

Adding to 11002081 its reverse (18020011), we get a palindrome (29022092).

The spelling of 11002081 in words is "eleven million, two thousand, eighty-one".