11000111011209 has 6 divisors (see below), whose sum is σ = 15889049238426. Its totient is φ = 7333407340800.

The previous prime is 11000111011207. The next prime is 11000111011247. The reversal of 11000111011209 is 90211011100011.

It can be written as a sum of positive squares in only one way, i.e., 5959848038400 + 5040262972809 = 2441280^2 + 2245053^2 .

It is not a de Polignac number, because 11000111011209 - 2¹ = 11000111011207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11000111011191 and 11000111011200.

It is not an unprimeable number, because it can be changed into a prime (11000111011207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611117278392 + ... + 611117278409.

It is an arithmetic number, because the mean of its divisors is an integer number (2648174873071).

Almost surely, 2^{11000111011209} is an apocalyptic number.

It is an amenable number.

11000111011209 is a deficient number, since it is larger than the sum of its proper divisors (4888938227217).

11000111011209 is a wasteful number, since it uses less digits than its factorization.

11000111011209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222234556807 (or 1222234556804 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 11000111011209 in words is "eleven trillion, one hundred eleven million, eleven thousand, two hundred nine".