100020109 has 8 divisors (see below), whose sum is σ = 114411008. Its totient is φ = 85654800.

The previous prime is 100020103. The next prime is 100020113. The reversal of 100020109 is 901020001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100020109 - 2⁹ = 100019597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2884 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (14301376).

Almost surely, 2^100020109 is an apocalyptic number.

It is an amenable number.

100020109 is a deficient number, since it is larger than the sum of its proper divisors (14390899).

100020109 is a wasteful number, since it uses less digits than its factorization.

100020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12795.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 100020109 is about 10001.0053994586. The cubic root of 100020109 is about 464.1899938460.

The spelling of 100020109 in words is "one hundred million, twenty thousand, one hundred nine".