11010010091 has 2 divisors, whose sum is σ = 11010010092. Its totient is φ = 11010010090.

The previous prime is 11010010079. The next prime is 11010010147. The reversal of 11010010091 is 19001001011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11010010091 - 2²⁶ = 10942901227 is a prime.

It is not a weakly prime, because it can be changed into another prime (11010010031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505005045 + 5505005046.

It is an arithmetic number, because the mean of its divisors is an integer number (5505005046).

Almost surely, 2^11010010091 is an apocalyptic number.

11010010091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010010091 is an equidigital number, since it uses as much as digits as its factorization.

11010010091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 14.

The spelling of 11010010091 in words is "eleven billion, ten million, ten thousand, ninety-one".