443421314021 has 16 divisors (see below), whose sum is σ = 518784860160. Its totient is φ = 371100784560.

The previous prime is 443421313987. The next prime is 443421314027. The reversal of 443421314021 is 120413124344.

It is a cyclic number.

It is not a de Polignac number, because 443421314021 - 2¹⁸ = 443421051877 is a prime.

It is a super-2 number, since 2×443421314021² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443421314027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470485 + ... + 1746186.

It is an arithmetic number, because the mean of its divisors is an integer number (32424053760).

Almost surely, 2^443421314021 is an apocalyptic number.

It is an amenable number.

443421314021 is a deficient number, since it is larger than the sum of its proper divisors (75363546139).

443421314021 is a wasteful number, since it uses less digits than its factorization.

443421314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217144.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 443421314021 its reverse (120413124344), we get a palindrome (563834438365).

The spelling of 443421314021 in words is "four hundred forty-three billion, four hundred twenty-one million, three hundred fourteen thousand, twenty-one".