2021111020039 has 2 divisors, whose sum is σ = 2021111020040. Its totient is φ = 2021111020038.

The previous prime is 2021111019923. The next prime is 2021111020067. The reversal of 2021111020039 is 9300201111202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021111020039 - 2²⁹ = 2020574149127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021111020939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010555510019 + 1010555510020.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555510020).

Almost surely, 2^{2021111020039} is an apocalyptic number.

2021111020039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021111020039 is an equidigital number, since it uses as much as digits as its factorization.

2021111020039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 2021111020039 in words is "two trillion, twenty-one billion, one hundred eleven million, twenty thousand, thirty-nine".