11209061 has 2 divisors, whose sum is σ = 11209062. Its totient is φ = 11209060.

The previous prime is 11209049. The next prime is 11209063. The reversal of 11209061 is 16090211.

11209061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 776161 = 3230^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 11209061 - 2¹⁴ = 11192677 is a prime.

Together with 11209063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11209063) 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, 5604530 + 5604531.

It is an arithmetic number, because the mean of its divisors is an integer number (5604531).

Almost surely, 2^11209061 is an apocalyptic number.

It is an amenable number.

11209061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209061 is an equidigital number, since it uses as much as digits as its factorization.

11209061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 11209061 is about 3347.9935782495. The cubic root of 11209061 is about 223.7981081080.

Adding to 11209061 its reverse (16090211), we get a palindrome (27299272).

The spelling of 11209061 in words is "eleven million, two hundred nine thousand, sixty-one".