2100020120039 has 2 divisors, whose sum is σ = 2100020120040. Its totient is φ = 2100020120038.

The previous prime is 2100020119993. The next prime is 2100020120113. The reversal of 2100020120039 is 9300210200012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100020120039 - 2³² = 2095725152743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100020120039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100020123039) 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 as a sum of consecutive naturals, namely, 1050010060019 + 1050010060020.

It is an arithmetic number, because the mean of its divisors is an integer number (1050010060020).

Almost surely, 2^{2100020120039} is an apocalyptic number.

2100020120039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100020120039 is an equidigital number, since it uses as much as digits as its factorization.

2100020120039 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 2100020120039 in words is "two trillion, one hundred billion, twenty million, one hundred twenty thousand, thirty-nine".