100111009 has 8 divisors (see below), whose sum is σ = 102849120. Its totient is φ = 97391616.

The previous prime is 100111007. The next prime is 100111043. The reversal of 100111009 is 900111001.

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 100111009 - 2¹ = 100111007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100111009.

It is not an unprimeable number, because it can be changed into a prime (100111001) 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, 6522 + ... + 15580.

It is an arithmetic number, because the mean of its divisors is an integer number (12856140).

Almost surely, 2^100111009 is an apocalyptic number.

It is an amenable number.

100111009 is a deficient number, since it is larger than the sum of its proper divisors (2738111).

100111009 is an equidigital number, since it uses as much as digits as its factorization.

100111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9359.

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

The square root of 100111009 is about 10005.5489104796. The cubic root of 100111009 is about 464.3305725584.

The spelling of 100111009 in words is "one hundred million, one hundred eleven thousand, nine".