204030545093 has 2 divisors, whose sum is σ = 204030545094. Its totient is φ = 204030545092.

The previous prime is 204030545063. The next prime is 204030545129. The reversal of 204030545093 is 390545030402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126577985284 + 77452559809 = 355778^2 + 278303^2 .

It is a cyclic number.

It is not a de Polignac number, because 204030545093 - 2¹⁶ = 204030479557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204030545053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102015272546 + 102015272547.

It is an arithmetic number, because the mean of its divisors is an integer number (102015272547).

Almost surely, 2^204030545093 is an apocalyptic number.

It is an amenable number.

204030545093 is a deficient number, since it is larger than the sum of its proper divisors (1).

204030545093 is an equidigital number, since it uses as much as digits as its factorization.

204030545093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 204030545093 its reverse (390545030402), we get a palindrome (594575575495).

The spelling of 204030545093 in words is "two hundred four billion, thirty million, five hundred forty-five thousand, ninety-three".