11101330091 has 4 divisors (see below), whose sum is σ = 11101791792. Its totient is φ = 11100868392.

The previous prime is 11101330069. The next prime is 11101330099. The reversal of 11101330091 is 19003310111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101330091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101330099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192680 + ... + 243573.

It is an arithmetic number, because the mean of its divisors is an integer number (2775447948).

Almost surely, 2^11101330091 is an apocalyptic number.

11101330091 is a deficient number, since it is larger than the sum of its proper divisors (461701).

11101330091 is an equidigital number, since it uses as much as digits as its factorization.

11101330091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461700.

The product of its (nonzero) digits is 81, while the sum is 20.

The spelling of 11101330091 in words is "eleven billion, one hundred one million, three hundred thirty thousand, ninety-one".