11003331209 has 16 divisors (see below), whose sum is σ = 12550704768. Its totient is φ = 9556468992.

The previous prime is 11003331203. The next prime is 11003331211. The reversal of 11003331209 is 90213330011.

It is a cyclic number.

It is not a de Polignac number, because 11003331209 - 2¹² = 11003327113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003331203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990524 + ... + 1001570.

It is an arithmetic number, because the mean of its divisors is an integer number (784419048).

Almost surely, 2^11003331209 is an apocalyptic number.

It is an amenable number.

11003331209 is a deficient number, since it is larger than the sum of its proper divisors (1547373559).

11003331209 is a wasteful number, since it uses less digits than its factorization.

11003331209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15584.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 11003331209 in words is "eleven billion, three million, three hundred thirty-one thousand, two hundred nine".