443200234021 has 4 divisors (see below), whose sum is σ = 443345026444. Its totient is φ = 443055441600.

The previous prime is 443200233977. The next prime is 443200234049. The reversal of 443200234021 is 120432002344.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 233495769796 + 209704464225 = 483214^2 + 457935^2 .

It is a cyclic number.

It is not a de Polignac number, because 443200234021 - 2⁷ = 443200233893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443200234091) 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, 72391620 + ... + 72397741.

It is an arithmetic number, because the mean of its divisors is an integer number (110836256611).

Almost surely, 2^443200234021 is an apocalyptic number.

It is an amenable number.

443200234021 is a deficient number, since it is larger than the sum of its proper divisors (144792423).

443200234021 is a wasteful number, since it uses less digits than its factorization.

443200234021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144792422.

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

Adding to 443200234021 its reverse (120432002344), we get a palindrome (563632236365).

The spelling of 443200234021 in words is "four hundred forty-three billion, two hundred million, two hundred thirty-four thousand, twenty-one".