204234321442 has 4 divisors (see below), whose sum is σ = 306351482166. Its totient is φ = 102117160720.

The previous prime is 204234321437. The next prime is 204234321443. The reversal of 204234321442 is 244123432402.

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

It can be written as a sum of positive squares in only one way, i.e., 164625759081 + 39608562361 = 405741^2 + 199019^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (204234321443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51058580359 + ... + 51058580362.

Almost surely, 2^204234321442 is an apocalyptic number.

204234321442 is a deficient number, since it is larger than the sum of its proper divisors (102117160724).

204234321442 is a wasteful number, since it uses less digits than its factorization.

204234321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102117160723.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 204234321442 its reverse (244123432402), we get a palindrome (448357753844).

The spelling of 204234321442 in words is "two hundred four billion, two hundred thirty-four million, three hundred twenty-one thousand, four hundred forty-two".