2020443001243 has 4 divisors (see below), whose sum is σ = 2020804381008. Its totient is φ = 2020081621480.

The previous prime is 2020443001121. The next prime is 2020443001249. The reversal of 2020443001243 is 3421003440202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020443001243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020443001249) 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 in 3 ways as a sum of consecutive naturals, for example, 180681496 + ... + 180692677.

It is an arithmetic number, because the mean of its divisors is an integer number (505201095252).

Almost surely, 2^{2020443001243} is an apocalyptic number.

2020443001243 is a deficient number, since it is larger than the sum of its proper divisors (361379765).

2020443001243 is an equidigital number, since it uses as much as digits as its factorization.

2020443001243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361379764.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 2020443001243 its reverse (3421003440202), we get a palindrome (5441446441445).

The spelling of 2020443001243 in words is "two trillion, twenty billion, four hundred forty-three million, one thousand, two hundred forty-three".