204430442320043 has 4 divisors (see below), whose sum is σ = 205684616812968. Its totient is φ = 203176267827120.

The previous prime is 204430442320019. The next prime is 204430442320057. The reversal of 204430442320043 is 340023244034402.

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 204430442320043 - 2⁸ = 204430442319787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204430442319985 and 204430442320012.

It is not an unprimeable number, because it can be changed into a prime (204430442320063) 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, 627087246218 + ... + 627087246543.

It is an arithmetic number, because the mean of its divisors is an integer number (51421154203242).

Almost surely, 2^{204430442320043} is an apocalyptic number.

204430442320043 is a deficient number, since it is larger than the sum of its proper divisors (1254174492925).

204430442320043 is a wasteful number, since it uses less digits than its factorization.

204430442320043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254174492924.

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 204430442320043 its reverse (340023244034402), we get a palindrome (544453686354445).

The spelling of 204430442320043 in words is "two hundred four trillion, four hundred thirty billion, four hundred forty-two million, three hundred twenty thousand, forty-three".