11001112009 has 8 divisors (see below), whose sum is σ = 11053172520. Its totient is φ = 10949093376.

The previous prime is 11001112007. The next prime is 11001112019. The reversal of 11001112009 is 90021110011.

It can be written as a sum of positive squares in 4 ways, for example, as 2975625 + 10998136384 = 1725^2 + 104872^2 .

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 11001112009 - 2¹ = 11001112007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001111983 and 11001112001.

It is not an unprimeable number, because it can be changed into a prime (11001112007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598849 + ... + 616945.

It is an arithmetic number, because the mean of its divisors is an integer number (1381646565).

Almost surely, 2^11001112009 is an apocalyptic number.

It is an amenable number.

11001112009 is a deficient number, since it is larger than the sum of its proper divisors (52060511).

11001112009 is a wasteful number, since it uses less digits than its factorization.

11001112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20939.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 11001112009 in words is "eleven billion, one million, one hundred twelve thousand, nine".