11011200209 has 4 divisors (see below), whose sum is σ = 11054045604. Its totient is φ = 10968354816.

The previous prime is 11011200197. The next prime is 11011200223. The reversal of 11011200209 is 90200211011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90200211011 = 541 ⋅166728671.

It can be written as a sum of positive squares in 2 ways, for example, as 8588099584 + 2423100625 = 92672^2 + 49225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011200209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011200289) 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 in 3 ways as a sum of consecutive naturals, for example, 21422312 + ... + 21422825.

It is an arithmetic number, because the mean of its divisors is an integer number (2763511401).

Almost surely, 2^11011200209 is an apocalyptic number.

It is an amenable number.

11011200209 is a deficient number, since it is larger than the sum of its proper divisors (42845395).

11011200209 is an equidigital number, since it uses as much as digits as its factorization.

11011200209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42845394.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 11011200209 in words is "eleven billion, eleven million, two hundred thousand, two hundred nine".