11573356811 has 2 divisors, whose sum is σ = 11573356812. Its totient is φ = 11573356810.

The previous prime is 11573356789. The next prime is 11573356889. The reversal of 11573356811 is 11865337511.

11573356811 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11573356811 is a prime.

It is not a weakly prime, because it can be changed into another prime (11573353811) 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, 5786678405 + 5786678406.

It is an arithmetic number, because the mean of its divisors is an integer number (5786678406).

Almost surely, 2^11573356811 is an apocalyptic number.

11573356811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11573356811 is an equidigital number, since it uses as much as digits as its factorization.

11573356811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 41.

The spelling of 11573356811 in words is "eleven billion, five hundred seventy-three million, three hundred fifty-six thousand, eight hundred eleven".