10010001009 has 4 divisors (see below), whose sum is σ = 13346668016. Its totient is φ = 6673334004.

The previous prime is 10010000999. The next prime is 10010001011. The reversal of 10010001009 is 90010001001.

10010001009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90010001001 = 3 ⋅30003333667.

It is not a de Polignac number, because 10010001009 - 2⁷ = 10010000881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10010000985 and 10010001003.

It is not an unprimeable number, because it can be changed into a prime (10010001809) 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 3 ways as a sum of consecutive naturals, for example, 1668333499 + ... + 1668333504.

It is an arithmetic number, because the mean of its divisors is an integer number (3336667004).

Almost surely, 2^10010001009 is an apocalyptic number.

It is an amenable number.

10010001009 is a deficient number, since it is larger than the sum of its proper divisors (3336667007).

10010001009 is an equidigital number, since it uses as much as digits as its factorization.

10010001009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336667006.

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

The spelling of 10010001009 in words is "ten billion, ten million, one thousand, nine".