204040311353 has 2 divisors, whose sum is σ = 204040311354. Its totient is φ = 204040311352.

The previous prime is 204040311331. The next prime is 204040311373. The reversal of 204040311353 is 353113040402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179168498089 + 24871813264 = 423283^2 + 157708^2 .

It is a cyclic number.

It is not a de Polignac number, because 204040311353 - 2¹⁰ = 204040310329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (204040311323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102020155676 + 102020155677.

It is an arithmetic number, because the mean of its divisors is an integer number (102020155677).

Almost surely, 2^204040311353 is an apocalyptic number.

It is an amenable number.

204040311353 is a deficient number, since it is larger than the sum of its proper divisors (1).

204040311353 is an equidigital number, since it uses as much as digits as its factorization.

204040311353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 204040311353 its reverse (353113040402), we get a palindrome (557153351755).

The spelling of 204040311353 in words is "two hundred four billion, forty million, three hundred eleven thousand, three hundred fifty-three".