10919109091 has 24 divisors (see below), whose sum is σ = 12258237600. Its totient is φ = 9716784000.

The previous prime is 10919109077. The next prime is 10919109133. The reversal of 10919109091 is 19090191901.

It is not a de Polignac number, because 10919109091 - 2³³ = 2329174499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10919109191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1082650 + ... + 1092688.

It is an arithmetic number, because the mean of its divisors is an integer number (510759900).

Almost surely, 2^10919109091 is an apocalyptic number.

10919109091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10919109091 is a deficient number, since it is larger than the sum of its proper divisors (1339128509).

10919109091 is a wasteful number, since it uses less digits than its factorization.

10919109091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251 (or 10240 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 10919109091 in words is "ten billion, nine hundred nineteen million, one hundred nine thousand, ninety-one".