11443313 has 12 divisors (see below), whose sum is σ = 13772340. Its totient is φ = 9469152.

The previous prime is 11443307. The next prime is 11443319. The reversal of 11443313 is 31334411.

It is an interprime number because it is at equal distance from previous prime (11443307) and next prime (11443319).

It can be written as a sum of positive squares in 2 ways, for example, as 7491169 + 3952144 = 2737^2 + 1988^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11443313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11443319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2606 + ... + 5447.

It is an arithmetic number, because the mean of its divisors is an integer number (1147695).

Almost surely, 2^11443313 is an apocalyptic number.

It is an amenable number.

11443313 is a deficient number, since it is larger than the sum of its proper divisors (2329027).

11443313 is an equidigital number, since it uses as much as digits as its factorization.

11443313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096 (or 8089 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 11443313 is about 3382.7966240967. The cubic root of 11443313 is about 225.3463833480.

Adding to 11443313 its reverse (31334411), we get a palindrome (42777724).

The spelling of 11443313 in words is "eleven million, four hundred forty-three thousand, three hundred thirteen".