111000100009 has 4 divisors (see below), whose sum is σ = 111071301120. Its totient is φ = 110928898900.

The previous prime is 111000099979. The next prime is 111000100019. The reversal of 111000100009 is 900001000111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000100009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111000100019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35598217 + ... + 35601334.

It is an arithmetic number, because the mean of its divisors is an integer number (27767825280).

Almost surely, 2^111000100009 is an apocalyptic number.

It is an amenable number.

111000100009 is a deficient number, since it is larger than the sum of its proper divisors (71201111).

111000100009 is an equidigital number, since it uses as much as digits as its factorization.

111000100009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71201110.

The product of its (nonzero) digits is 9, while the sum is 13.

The spelling of 111000100009 in words is "one hundred eleven billion, one hundred thousand, nine".