204234524309 has 2 divisors, whose sum is σ = 204234524310. Its totient is φ = 204234524308.

The previous prime is 204234524293. The next prime is 204234524327. The reversal of 204234524309 is 903425432402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204233494084 + 1030225 = 451922^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 204234524309 - 2⁴ = 204234524293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204234520309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102117262154 + 102117262155.

It is an arithmetic number, because the mean of its divisors is an integer number (102117262155).

Almost surely, 2^204234524309 is an apocalyptic number.

It is an amenable number.

204234524309 is a deficient number, since it is larger than the sum of its proper divisors (1).

204234524309 is an equidigital number, since it uses as much as digits as its factorization.

204234524309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 204234524309 in words is "two hundred four billion, two hundred thirty-four million, five hundred twenty-four thousand, three hundred nine".