11287313 has 2 divisors, whose sum is σ = 11287314. Its totient is φ = 11287312.

The previous prime is 11287307. The next prime is 11287321. The reversal of 11287313 is 31378211.

11287313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 4464769 = 2612^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 11287313 - 2⁶ = 11287249 is a prime.

It is equal to p₇₄₄₂₁₈ and since 11287313 and 744218 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11287343) 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 as a sum of consecutive naturals, namely, 5643656 + 5643657.

It is an arithmetic number, because the mean of its divisors is an integer number (5643657).

Almost surely, 2^11287313 is an apocalyptic number.

It is an amenable number.

11287313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11287313 is an equidigital number, since it uses as much as digits as its factorization.

11287313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 11287313 is about 3359.6596553818. The cubic root of 11287313 is about 224.3176893688.

The spelling of 11287313 in words is "eleven million, two hundred eighty-seven thousand, three hundred thirteen".