11012081 has 2 divisors, whose sum is σ = 11012082. Its totient is φ = 11012080.

The previous prime is 11012041. The next prime is 11012087. The reversal of 11012081 is 18021011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 874225 = 3184^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012081 - 2⁶ = 11012017 is a prime.

It is a super-2 number, since 2×11012081² = 242531855901122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11012087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506040 + 5506041.

It is an arithmetic number, because the mean of its divisors is an integer number (5506041).

Almost surely, 2^11012081 is an apocalyptic number.

It is an amenable number.

11012081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012081 is an equidigital number, since it uses as much as digits as its factorization.

11012081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 11012081 is about 3318.4455698414. The cubic root of 11012081 is about 222.4793971581.

Adding to 11012081 its reverse (18021011), we get a palindrome (29033092).

The spelling of 11012081 in words is "eleven million, twelve thousand, eighty-one".