11009603 has 8 divisors (see below), whose sum is σ = 12063216. Its totient is φ = 9964800.

The previous prime is 11009599. The next prime is 11009611. The reversal of 11009603 is 30690011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11009603 - 2² = 11009599 is a prime.

It is a super-2 number, since 2×11009603² = 242422716435218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11009653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575 + ... + 4727.

It is an arithmetic number, because the mean of its divisors is an integer number (1507902).

Almost surely, 2^11009603 is an apocalyptic number.

11009603 is a deficient number, since it is larger than the sum of its proper divisors (1053613).

11009603 is a wasteful number, since it uses less digits than its factorization.

11009603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11009603 is about 3318.0721812522. The cubic root of 11009603 is about 222.4627080538.

Adding to 11009603 its reverse (30690011), we get a palindrome (41699614).

The spelling of 11009603 in words is "eleven million, nine thousand, six hundred three".