2021314242443 has 4 divisors (see below), whose sum is σ = 2021326709400. Its totient is φ = 2021301775488.

The previous prime is 2021314242419. The next prime is 2021314242461. The reversal of 2021314242443 is 3442424131202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2021314242443 - 2²⁴ = 2021297465227 is a prime.

It is a super-2 number, since 2×2021314242443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021314242473) 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, 5987030 + ... + 6315627.

It is an arithmetic number, because the mean of its divisors is an integer number (505331677350).

Almost surely, 2^{2021314242443} is an apocalyptic number.

2021314242443 is a deficient number, since it is larger than the sum of its proper divisors (12466957).

2021314242443 is a wasteful number, since it uses less digits than its factorization.

2021314242443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12466956.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2021314242443 its reverse (3442424131202), we get a palindrome (5463738373645).

The spelling of 2021314242443 in words is "two trillion, twenty-one billion, three hundred fourteen million, two hundred forty-two thousand, four hundred forty-three".