11305071 has 12 divisors (see below), whose sum is σ = 16370848. Its totient is φ = 7517664.

The previous prime is 11305067. The next prime is 11305109. The reversal of 11305071 is 17050311.

It is a happy number.

It is not a de Polignac number, because 11305071 - 2² = 11305067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305061) 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 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 5523.

Almost surely, 2^11305071 is an apocalyptic number.

11305071 is a deficient number, since it is larger than the sum of its proper divisors (5065777).

11305071 is a wasteful number, since it uses less digits than its factorization.

11305071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 11305071 is about 3362.3014439517. The cubic root of 11305071 is about 224.4352652213.

Adding to 11305071 its reverse (17050311), we get a palindrome (28355382).

The spelling of 11305071 in words is "eleven million, three hundred five thousand, seventy-one".