11002000181 has 2 divisors, whose sum is σ = 11002000182. Its totient is φ = 11002000180.

The previous prime is 11002000169. The next prime is 11002000189. The reversal of 11002000181 is 18100020011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10808929156 + 193071025 = 103966^2 + 13895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11002000181 is a prime.

It is a super-2 number, since 2×11002000181² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11002000189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501000090 + 5501000091.

It is an arithmetic number, because the mean of its divisors is an integer number (5501000091).

Almost surely, 2^11002000181 is an apocalyptic number.

It is an amenable number.

11002000181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002000181 is an equidigital number, since it uses as much as digits as its factorization.

11002000181 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 14.

Adding to 11002000181 its reverse (18100020011), we get a palindrome (29102020192).

The spelling of 11002000181 in words is "eleven billion, two million, one hundred eighty-one", and thus it is an aban number.