11306681 has 2 divisors, whose sum is σ = 11306682. Its totient is φ = 11306680.

The previous prime is 11306657. The next prime is 11306753. The reversal of 11306681 is 18660311.

11306681 is digitally balanced in base 2, 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., 11162281 + 144400 = 3341^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 11306681 - 2¹⁴ = 11290297 is a prime.

It is a super-2 number, since 2×11306681² = 255682070471522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11306681.

It is not a weakly prime, because it can be changed into another prime (11306641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5653340 + 5653341.

It is an arithmetic number, because the mean of its divisors is an integer number (5653341).

Almost surely, 2^11306681 is an apocalyptic number.

It is an amenable number.

11306681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11306681 is an equidigital number, since it uses as much as digits as its factorization.

11306681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11306681 is about 3362.5408547704. The cubic root of 11306681 is about 224.4459189543.

Adding to 11306681 its reverse (18660311), we get a palindrome (29966992).

The spelling of 11306681 in words is "eleven million, three hundred six thousand, six hundred eighty-one".