11807681940911 has 2 divisors, whose sum is σ = 11807681940912. Its totient is φ = 11807681940910.

The previous prime is 11807681940851. The next prime is 11807681940937. The reversal of 11807681940911 is 11904918670811.

11807681940911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11807681940911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11807681940991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5903840970455 + 5903840970456.

It is an arithmetic number, because the mean of its divisors is an integer number (5903840970456).

Almost surely, 2^{11807681940911} is an apocalyptic number.

11807681940911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11807681940911 is an equidigital number, since it uses as much as digits as its factorization.

11807681940911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 56.

The spelling of 11807681940911 in words is "eleven trillion, eight hundred seven billion, six hundred eighty-one million, nine hundred forty thousand, nine hundred eleven".