2021340241439 has 2 divisors, whose sum is σ = 2021340241440. Its totient is φ = 2021340241438.

The previous prime is 2021340241433. The next prime is 2021340241441. The reversal of 2021340241439 is 9341420431202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021340241439 - 2⁴ = 2021340241423 is a prime.

Together with 2021340241441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021340241399 and 2021340241408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021340241433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010670120719 + 1010670120720.

It is an arithmetic number, because the mean of its divisors is an integer number (1010670120720).

Almost surely, 2^{2021340241439} is an apocalyptic number.

2021340241439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021340241439 is an equidigital number, since it uses as much as digits as its factorization.

2021340241439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 2021340241439 in words is "two trillion, twenty-one billion, three hundred forty million, two hundred forty-one thousand, four hundred thirty-nine".