20020100021039 has 2 divisors, whose sum is σ = 20020100021040. Its totient is φ = 20020100021038.

The previous prime is 20020100020997. The next prime is 20020100021041. The reversal of 20020100021039 is 93012000102002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020100021039 - 2⁴⁴ = 2427913976623 is a prime.

Together with 20020100021041, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020100021039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020100021059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010050010519 + 10010050010520.

It is an arithmetic number, because the mean of its divisors is an integer number (10010050010520).

Almost surely, 2^{20020100021039} is an apocalyptic number.

20020100021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020100021039 is an equidigital number, since it uses as much as digits as its factorization.

20020100021039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 20020100021039 in words is "twenty trillion, twenty billion, one hundred million, twenty-one thousand, thirty-nine".