1001020020109 has 8 divisors (see below), whose sum is σ = 1002019858272. Its totient is φ = 1000020337680.

The previous prime is 1001020020089. The next prime is 1001020020167. The reversal of 1001020020109 is 9010200201001.

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 1001020020109 - 2²⁷ = 1000885802381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001020020092 and 1001020020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001020023109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16113702 + ... + 16175704.

It is an arithmetic number, because the mean of its divisors is an integer number (125252482284).

Almost surely, 2^{1001020020109} is an apocalyptic number.

It is an amenable number.

1001020020109 is a deficient number, since it is larger than the sum of its proper divisors (999838163).

1001020020109 is a wasteful number, since it uses less digits than its factorization.

1001020020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77867.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 1001020020109 in words is "one trillion, one billion, twenty million, twenty thousand, one hundred nine".