204431433310442 has 32 divisors (see below), whose sum is σ = 356258381047632. Its totient is φ = 87127270124544.

The previous prime is 204431433310441. The next prime is 204431433310451. The reversal of 204431433310442 is 244013334134402.

It can be written as a sum of positive squares in 8 ways, for example, as 67294475429041 + 137136957881401 = 8203321^2 + 11710549^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204431433310396 and 204431433310405.

It is not an unprimeable number, because it can be changed into a prime (204431433310441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4363321433 + ... + 4363368284.

Almost surely, 2^{204431433310442} is an apocalyptic number.

204431433310442 is a deficient number, since it is larger than the sum of its proper divisors (151826947737190).

204431433310442 is a wasteful number, since it uses less digits than its factorization.

204431433310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726689802.

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 204431433310442 its reverse (244013334134402), we get a palindrome (448444767444844).

The spelling of 204431433310442 in words is "two hundred four trillion, four hundred thirty-one billion, four hundred thirty-three million, three hundred ten thousand, four hundred forty-two".