204421442201243 has 8 divisors (see below), whose sum is σ = 204447351676080. Its totient is φ = 204395533786080.

The previous prime is 204421442201233. The next prime is 204421442201261. The reversal of 204421442201243 is 342102244124402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204421442201243 - 2²⁰ = 204421441152667 is a prime.

It is a super-2 number, since 2×204421442201243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204421442201203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428905796 + ... + 429382142.

It is an arithmetic number, because the mean of its divisors is an integer number (25555918959510).

Almost surely, 2^{204421442201243} is an apocalyptic number.

204421442201243 is a deficient number, since it is larger than the sum of its proper divisors (25909474837).

204421442201243 is an equidigital number, since it uses as much as digits as its factorization.

204421442201243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529837.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 204421442201243 its reverse (342102244124402), we get a palindrome (546523686325645).

The spelling of 204421442201243 in words is "two hundred four trillion, four hundred twenty-one billion, four hundred forty-two million, two hundred one thousand, two hundred forty-three".