2101011020039 has 2 divisors, whose sum is σ = 2101011020040. Its totient is φ = 2101011020038.

The previous prime is 2101011019999. The next prime is 2101011020041. The reversal of 2101011020039 is 9300201101012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101011020039 is a prime.

Together with 2101011020041, 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 2101011020039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101011020099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505510019 + 1050505510020.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505510020).

Almost surely, 2^{2101011020039} is an apocalyptic number.

2101011020039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101011020039 is an equidigital number, since it uses as much as digits as its factorization.

2101011020039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 2101011020039 in words is "two trillion, one hundred one billion, eleven million, twenty thousand, thirty-nine".