11681273 has 2 divisors, whose sum is σ = 11681274. Its totient is φ = 11681272.

The previous prime is 11681237. The next prime is 11681291. The reversal of 11681273 is 37218611.

Together with previous prime (11681237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11202409 + 478864 = 3347^2 + 692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11681273 is a prime.

It is not a weakly prime, because it can be changed into another prime (11681213) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5840636 + 5840637.

It is an arithmetic number, because the mean of its divisors is an integer number (5840637).

Almost surely, 2^11681273 is an apocalyptic number.

It is an amenable number.

11681273 is a deficient number, since it is larger than the sum of its proper divisors (1).

11681273 is an equidigital number, since it uses as much as digits as its factorization.

11681273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 11681273 is about 3417.7877347782. The cubic root of 11681273 is about 226.8976813808.

Adding to 11681273 its reverse (37218611), we get a palindrome (48899884).

The spelling of 11681273 in words is "eleven million, six hundred eighty-one thousand, two hundred seventy-three".