11209011 has 16 divisors (see below), whose sum is σ = 16831488. Its totient is φ = 6573600.

The previous prime is 11209007. The next prime is 11209013. The reversal of 11209011 is 11090211.

11209011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11209011 - 2² = 11209007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11209013) 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 15 ways as a sum of consecutive naturals, for example, 4456 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (1051968).

Almost surely, 2^11209011 is an apocalyptic number.

11209011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11209011 is a deficient number, since it is larger than the sum of its proper divisors (5622477).

11209011 is a wasteful number, since it uses less digits than its factorization.

11209011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 11209011 is about 3347.9861110823. The cubic root of 11209011 is about 223.7977753438.

Adding to 11209011 its reverse (11090211), we get a palindrome (22299222).

It can be divided in two parts, 112090 and 11, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 11209011 in words is "eleven million, two hundred nine thousand, eleven".