11305205 has 4 divisors (see below), whose sum is σ = 13566252. Its totient is φ = 9044160.

The previous prime is 11305199. The next prime is 11305207. The reversal of 11305205 is 50250311.

11305205 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 50250311 = 3361 ⋅14951.

It can be written as a sum of positive squares in 2 ways, for example, as 2436721 + 8868484 = 1561^2 + 2978^2 .

It is not a de Polignac number, because 11305205 - 2⁶ = 11305141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1130516 + ... + 1130525.

It is an arithmetic number, because the mean of its divisors is an integer number (3391563).

Almost surely, 2^11305205 is an apocalyptic number.

It is an amenable number.

11305205 is a deficient number, since it is larger than the sum of its proper divisors (2261047).

11305205 is an equidigital number, since it uses as much as digits as its factorization.

11305205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261046.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 11305205 is about 3362.3213707199. The cubic root of 11305205 is about 224.4361519681.

Adding to 11305205 its reverse (50250311), we get a palindrome (61555516).

The spelling of 11305205 in words is "eleven million, three hundred five thousand, two hundred five".