11120805 has 24 divisors (see below), whose sum is σ = 20411352. Its totient is φ = 5581824.

The previous prime is 11120803. The next prime is 11120843. The reversal of 11120805 is 50802111.

It can be written as a sum of positive squares in 4 ways, for example, as 1179396 + 9941409 = 1086^2 + 3153^2 .

It is not a de Polignac number, because 11120805 - 2¹ = 11120803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120803) 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 in 23 ways as a sum of consecutive naturals, for example, 6504 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (850473).

Almost surely, 2^11120805 is an apocalyptic number.

11120805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11120805 is a deficient number, since it is larger than the sum of its proper divisors (9290547).

11120805 is a wasteful number, since it uses less digits than its factorization.

11120805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14565 (or 14562 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 11120805 is about 3334.7870996512. The cubic root of 11120805 is about 223.2091919173.

Adding to 11120805 its reverse (50802111), we get a palindrome (61922916).

The spelling of 11120805 in words is "eleven million, one hundred twenty thousand, eight hundred five".