2021443120241 has 4 divisors (see below), whose sum is σ = 2024886805872. Its totient is φ = 2017999434612.

The previous prime is 2021443120201. The next prime is 2021443120313. The reversal of 2021443120241 is 1420213441202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021443120241 - 2¹⁰ = 2021443119217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021443120241.

It is not an unprimeable number, because it can be changed into a prime (2021443120201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721841935 + ... + 1721843108.

It is an arithmetic number, because the mean of its divisors is an integer number (506221701468).

Almost surely, 2^{2021443120241} is an apocalyptic number.

It is an amenable number.

2021443120241 is a deficient number, since it is larger than the sum of its proper divisors (3443685631).

2021443120241 is an equidigital number, since it uses as much as digits as its factorization.

2021443120241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443685630.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2021443120241 its reverse (1420213441202), we get a palindrome (3441656561443).

The spelling of 2021443120241 in words is "two trillion, twenty-one billion, four hundred forty-three million, one hundred twenty thousand, two hundred forty-one".