11041111 has 2 divisors, whose sum is σ = 11041112. Its totient is φ = 11041110.

The previous prime is 11041097. The next prime is 11041157. The reversal of 11041111 is 11114011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11041111 - 2⁷ = 11040983 is a prime.

It is a super-4 number, since 4×11041111⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

11041111 is a modest number, since divided by 1111 gives 1104 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11051111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5520555 + 5520556.

It is an arithmetic number, because the mean of its divisors is an integer number (5520556).

Almost surely, 2^11041111 is an apocalyptic number.

11041111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11041111 is an equidigital number, since it uses as much as digits as its factorization.

11041111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 11041111 is about 3322.8167268148. The cubic root of 11041111 is about 222.6747253568.

Adding to 11041111 its reverse (11114011), we get a palindrome (22155122).

Subtracting 11041111 from its reverse (11114011), we obtain a square (72900 = 270²).

The spelling of 11041111 in words is "eleven million, forty-one thousand, one hundred eleven".