11216305 has 4 divisors (see below), whose sum is σ = 13459572. Its totient is φ = 8973040.

The previous prime is 11216287. The next prime is 11216321. The reversal of 11216305 is 50361211.

11216305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6230016 + 4986289 = 2496^2 + 2233^2 .

It is not a de Polignac number, because 11216305 - 2¹¹ = 11214257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121626 + ... + 1121635.

It is an arithmetic number, because the mean of its divisors is an integer number (3364893).

Almost surely, 2^11216305 is an apocalyptic number.

It is an amenable number.

11216305 is a deficient number, since it is larger than the sum of its proper divisors (2243267).

11216305 is an equidigital number, since it uses as much as digits as its factorization.

11216305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243266.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 11216305 is about 3349.0752454969. The cubic root of 11216305 is about 223.8463085291.

Adding to 11216305 its reverse (50361211), we get a palindrome (61577516).

The spelling of 11216305 in words is "eleven million, two hundred sixteen thousand, three hundred five".