10919100091 has 2 divisors, whose sum is σ = 10919100092. Its totient is φ = 10919100090.

The previous prime is 10919100089. The next prime is 10919100131. The reversal of 10919100091 is 19000191901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10919100091 - 2¹ = 10919100089 is a prime.

Together with 10919100089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10919100791) 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, 5459550045 + 5459550046.

It is an arithmetic number, because the mean of its divisors is an integer number (5459550046).

Almost surely, 2^10919100091 is an apocalyptic number.

10919100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10919100091 is an equidigital number, since it uses as much as digits as its factorization.

10919100091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 31.

Adding to 10919100091 its reverse (19000191901), we get a palindrome (29919291992).

The spelling of 10919100091 in words is "ten billion, nine hundred nineteen million, one hundred thousand, ninety-one".