11120209999 has 4 divisors (see below), whose sum is σ = 11330025336. Its totient is φ = 10910394664.

The previous prime is 11120209979. The next prime is 11120210021. The reversal of 11120209999 is 99990202111.

11120209999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11120209999 - 2²¹ = 11118112847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120209979) 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 3 ways as a sum of consecutive naturals, for example, 104907589 + ... + 104907694.

It is an arithmetic number, because the mean of its divisors is an integer number (2832506334).

Almost surely, 2^11120209999 is an apocalyptic number.

11120209999 is a deficient number, since it is larger than the sum of its proper divisors (209815337).

11120209999 is an equidigital number, since it uses as much as digits as its factorization.

11120209999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209815336.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 11120209999 in words is "eleven billion, one hundred twenty million, two hundred nine thousand, nine hundred ninety-nine".