11003215205 has 16 divisors (see below), whose sum is σ = 13240506240. Its totient is φ = 8778178752.

The previous prime is 11003215193. The next prime is 11003215211. The reversal of 11003215205 is 50251230011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11003215205 - 2²⁰ = 11002166629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586082 + ... + 3589148.

It is an arithmetic number, because the mean of its divisors is an integer number (827531640).

Almost surely, 2^11003215205 is an apocalyptic number.

It is an amenable number.

11003215205 is a deficient number, since it is larger than the sum of its proper divisors (2237291035).

11003215205 is a wasteful number, since it uses less digits than its factorization.

11003215205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 11003215205 its reverse (50251230011), we get a palindrome (61254445216).

The spelling of 11003215205 in words is "eleven billion, three million, two hundred fifteen thousand, two hundred five".