11001311809 has 8 divisors (see below), whose sum is σ = 11584940000. Its totient is φ = 10418144832.

The previous prime is 11001311747. The next prime is 11001311821. The reversal of 11001311809 is 90811310011.

11001311809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11001311809 - 2⁹ = 11001311297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001312809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65784 + ... + 162265.

It is an arithmetic number, because the mean of its divisors is an integer number (1448117500).

Almost surely, 2^11001311809 is an apocalyptic number.

11001311809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11001311809 is a deficient number, since it is larger than the sum of its proper divisors (583628191).

11001311809 is a wasteful number, since it uses less digits than its factorization.

11001311809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230607.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 11001311809 in words is "eleven billion, one million, three hundred eleven thousand, eight hundred nine".