204042320131243 has 8 divisors (see below), whose sum is σ = 222595765310016. Its totient is φ = 185489565510600.

The previous prime is 204042320131219. The next prime is 204042320131253. The reversal of 204042320131243 is 342131023240402.

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 204042320131243 - 2¹⁷ = 204042320000171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204042320131253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172021621 + ... + 173203702.

It is an arithmetic number, because the mean of its divisors is an integer number (27824470663752).

Almost surely, 2^{204042320131243} is an apocalyptic number.

204042320131243 is a deficient number, since it is larger than the sum of its proper divisors (18553445178773).

204042320131243 is a wasteful number, since it uses less digits than its factorization.

204042320131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345279065.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 204042320131243 its reverse (342131023240402), we get a palindrome (546173343371645).

The spelling of 204042320131243 in words is "two hundred four trillion, forty-two billion, three hundred twenty million, one hundred thirty-one thousand, two hundred forty-three".