10001111100811 has 2 divisors, whose sum is σ = 10001111100812. Its totient is φ = 10001111100810.

The previous prime is 10001111100793. The next prime is 10001111100839. The reversal of 10001111100811 is 11800111110001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001111100811 is a prime.

It is not a weakly prime, because it can be changed into another prime (10001111100011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000555550405 + 5000555550406.

It is an arithmetic number, because the mean of its divisors is an integer number (5000555550406).

Almost surely, 2^{10001111100811} is an apocalyptic number.

10001111100811 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001111100811 is an equidigital number, since it uses as much as digits as its factorization.

10001111100811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 10001111100811 its reverse (11800111110001), we get a palindrome (21801222210812).

The spelling of 10001111100811 in words is "ten trillion, one billion, one hundred eleven million, one hundred thousand, eight hundred eleven".