1001000109 has 8 divisors (see below), whose sum is σ = 1370739040. Its totient is φ = 649297296.

The previous prime is 1001000107. The next prime is 1001000111. The reversal of 1001000109 is 9010001001.

It is an interprime number because it is at equal distance from previous prime (1001000107) and next prime (1001000111).

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

It is not a de Polignac number, because 1001000109 - 2¹ = 1001000107 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1001000094 and 1001000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000107) 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, 4508899 + ... + 4509120.

It is an arithmetic number, because the mean of its divisors is an integer number (171342380).

Almost surely, 2^1001000109 is an apocalyptic number.

It is an amenable number.

1001000109 is a deficient number, since it is larger than the sum of its proper divisors (369738931).

1001000109 is an equidigital number, since it uses as much as digits as its factorization.

1001000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018059.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1001000109 is about 31638.5857616930. The cubic root of 1001000109 is about 1000.3332585930. Note that the first 3 decimals are identical.

The spelling of 1001000109 in words is "one billion, one million, one hundred nine", and thus it is an aban number.