2021342140443 has 16 divisors (see below), whose sum is σ = 2706407548416. Its totient is φ = 1341927474240.

The previous prime is 2021342140397. The next prime is 2021342140459. The reversal of 2021342140443 is 3440412431202.

It is not a de Polignac number, because 2021342140443 - 2¹⁰ = 2021342139419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021342140443.

It is not an unprimeable number, because it can be changed into a prime (2021342100443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84855 + ... + 2012432.

It is an arithmetic number, because the mean of its divisors is an integer number (169150471776).

Almost surely, 2^{2021342140443} is an apocalyptic number.

2021342140443 is a deficient number, since it is larger than the sum of its proper divisors (685065407973).

2021342140443 is a wasteful number, since it uses less digits than its factorization.

2021342140443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098634.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2021342140443 its reverse (3440412431202), we get a palindrome (5461754571645).

The spelling of 2021342140443 in words is "two trillion, twenty-one billion, three hundred forty-two million, one hundred forty thousand, four hundred forty-three".