111101111112009 has 32 divisors (see below), whose sum is σ = 162682708334976. Its totient is φ = 67154884531200.

The previous prime is 111101111111803. The next prime is 111101111112133. The reversal of 111101111112009 is 900211111101111.

It is not a de Polignac number, because 111101111112009 - 2¹⁹ = 111101110587721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111101111112209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291280267 + ... + 291661440.

It is an arithmetic number, because the mean of its divisors is an integer number (5083834635468).

Almost surely, 2^{111101111112009} is an apocalyptic number.

It is an amenable number.

111101111112009 is a deficient number, since it is larger than the sum of its proper divisors (51581597222967).

111101111112009 is a wasteful number, since it uses less digits than its factorization.

111101111112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582941865.

The product of its (nonzero) digits is 18, while the sum is 21.

The spelling of 111101111112009 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one hundred twelve thousand, nine".