11013215 has 16 divisors (see below), whose sum is σ = 13982976. Its totient is φ = 8313600.

The previous prime is 11013209. The next prime is 11013227. The reversal of 11013215 is 51231011.

It is not a de Polignac number, because 11013215 - 2⁶ = 11013151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11013215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5489 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (873936).

Almost surely, 2^11013215 is an apocalyptic number.

11013215 is a deficient number, since it is larger than the sum of its proper divisors (2969761).

11013215 is a wasteful number, since it uses less digits than its factorization.

11013215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 11013215 is about 3318.6164285738. The cubic root of 11013215 is about 222.4870337097.

Adding to 11013215 its reverse (51231011), we get a palindrome (62244226).

The spelling of 11013215 in words is "eleven million, thirteen thousand, two hundred fifteen".