11681763211 has 2 divisors, whose sum is σ = 11681763212. Its totient is φ = 11681763210.

The previous prime is 11681763193. The next prime is 11681763281. The reversal of 11681763211 is 11236718611.

It is a happy number.

11681763211 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 is an emirp because it is prime and its reverse (11236718611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11681763211 - 2⁷ = 11681763083 is a prime.

It is not a weakly prime, because it can be changed into another prime (11681763281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5840881605 + 5840881606.

It is an arithmetic number, because the mean of its divisors is an integer number (5840881606).

Almost surely, 2^11681763211 is an apocalyptic number.

11681763211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11681763211 is an equidigital number, since it uses as much as digits as its factorization.

11681763211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The spelling of 11681763211 in words is "eleven billion, six hundred eighty-one million, seven hundred sixty-three thousand, two hundred eleven".