20020020010109 has 12 divisors (see below), whose sum is σ = 23288693760864. Its totient is φ = 17159944163544.

The previous prime is 20020020010061. The next prime is 20020020010121. The reversal of 20020020010109 is 90101002002002.

It is not a de Polignac number, because 20020020010109 - 2¹² = 20020020006013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020020010409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13007282 + ... + 14464764.

It is an arithmetic number, because the mean of its divisors is an integer number (1940724480072).

Almost surely, 2^{20020020010109} is an apocalyptic number.

It is an amenable number.

20020020010109 is a deficient number, since it is larger than the sum of its proper divisors (3268673750755).

20020020010109 is a wasteful number, since it uses less digits than its factorization.

20020020010109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737824 (or 1737817 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 20020020010109 in words is "twenty trillion, twenty billion, twenty million, ten thousand, one hundred nine".