100001203109 has 8 divisors (see below), whose sum is σ = 101898051192. Its totient is φ = 98104726720.

The previous prime is 100001203051. The next prime is 100001203163. The reversal of 100001203109 is 901302100001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46406638084 + 53594565025 = 215422^2 + 231505^2 .

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 100001203109 - 2⁸ = 100001202853 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 (100001203609) 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, 483887 + ... + 658899.

It is an arithmetic number, because the mean of its divisors is an integer number (12737256399).

Almost surely, 2^100001203109 is an apocalyptic number.

It is an amenable number.

100001203109 is a deficient number, since it is larger than the sum of its proper divisors (1896848083).

100001203109 is a wasteful number, since it uses less digits than its factorization.

100001203109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185847.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 100001203109 in words is "one hundred billion, one million, two hundred three thousand, one hundred nine".