11001111099857 has 2 divisors, whose sum is σ = 11001111099858. Its totient is φ = 11001111099856.

The previous prime is 11001111099833. The next prime is 11001111099863. The reversal of 11001111099857 is 75899011110011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9392992910401 + 1608118189456 = 3064799^2 + 1268116^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001111099857 - 2⁶ = 11001111099793 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001111069857) 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, 5500555549928 + 5500555549929.

It is an arithmetic number, because the mean of its divisors is an integer number (5500555549929).

Almost surely, 2^{11001111099857} is an apocalyptic number.

It is an amenable number.

11001111099857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001111099857 is an equidigital number, since it uses as much as digits as its factorization.

11001111099857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 44.

The spelling of 11001111099857 in words is "eleven trillion, one billion, one hundred eleven million, ninety-nine thousand, eight hundred fifty-seven".