11000020020091 has 2 divisors, whose sum is σ = 11000020020092. Its totient is φ = 11000020020090.

The previous prime is 11000020020049. The next prime is 11000020020149. The reversal of 11000020020091 is 19002002000011.

It is a weak prime.

It is an emirp because it is prime and its reverse (19002002000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000020020091 - 2¹³ = 11000020011899 is a prime.

It is not a weakly prime, because it can be changed into another prime (11000020027091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500010010045 + 5500010010046.

It is an arithmetic number, because the mean of its divisors is an integer number (5500010010046).

Almost surely, 2^{11000020020091} is an apocalyptic number.

11000020020091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000020020091 is an equidigital number, since it uses as much as digits as its factorization.

11000020020091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 11000020020091 in words is "eleven trillion, twenty million, twenty thousand, ninety-one".