11009209208 has 16 divisors (see below), whose sum is σ = 20660033880. Its totient is φ = 5499866848.

The previous prime is 11009209153. The next prime is 11009209219. The reversal of 11009209208 is 80290290011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582335 + ... + 600942.

Almost surely, 2^11009209208 is an apocalyptic number.

It is an amenable number.

11009209208 is a deficient number, since it is larger than the sum of its proper divisors (9650824672).

11009209208 is a wasteful number, since it uses less digits than its factorization.

11009209208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184446 (or 1184442 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

Adding to 11009209208 its reverse (80290290011), we get a palindrome (91299499219).

The spelling of 11009209208 in words is "eleven billion, nine million, two hundred nine thousand, two hundred eight".