11003032009 has 4 divisors (see below), whose sum is σ = 11650269204. Its totient is φ = 10355794816.

The previous prime is 11003032003. The next prime is 11003032039. The reversal of 11003032009 is 90023030011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8301943225 + 2701088784 = 91115^2 + 51972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11003032009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003032003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323618572 + ... + 323618605.

It is an arithmetic number, because the mean of its divisors is an integer number (2912567301).

Almost surely, 2^11003032009 is an apocalyptic number.

It is an amenable number.

11003032009 is a deficient number, since it is larger than the sum of its proper divisors (647237195).

11003032009 is an equidigital number, since it uses as much as digits as its factorization.

11003032009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647237194.

The product of its (nonzero) digits is 162, while the sum is 19.

The spelling of 11003032009 in words is "eleven billion, three million, thirty-two thousand, nine".