243204301073 has 2 divisors, whose sum is σ = 243204301074. Its totient is φ = 243204301072.

The previous prime is 243204301033. The next prime is 243204301091. The reversal of 243204301073 is 370103402342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143571272464 + 99633028609 = 378908^2 + 315647^2 .

It is a cyclic number.

It is not a de Polignac number, because 243204301073 - 2¹² = 243204296977 is a prime.

It is not a weakly prime, because it can be changed into another prime (243204301033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121602150536 + 121602150537.

It is an arithmetic number, because the mean of its divisors is an integer number (121602150537).

Almost surely, 2^243204301073 is an apocalyptic number.

It is an amenable number.

243204301073 is a deficient number, since it is larger than the sum of its proper divisors (1).

243204301073 is an equidigital number, since it uses as much as digits as its factorization.

243204301073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 29.

The spelling of 243204301073 in words is "two hundred forty-three billion, two hundred four million, three hundred one thousand, seventy-three".