243310201 has 2 divisors, whose sum is σ = 243310202. Its totient is φ = 243310200.

The previous prime is 243310163. The next prime is 243310213. The reversal of 243310201 is 102013342.

It is a happy number.

243310201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233356176 + 9954025 = 15276^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 243310201 - 2²³ = 234921593 is a prime.

It is not a weakly prime, because it can be changed into another prime (243310601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121655100 + 121655101.

It is an arithmetic number, because the mean of its divisors is an integer number (121655101).

Almost surely, 2^243310201 is an apocalyptic number.

It is an amenable number.

243310201 is a deficient number, since it is larger than the sum of its proper divisors (1).

243310201 is an equidigital number, since it uses as much as digits as its factorization.

243310201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243310201 is about 15598.4037965428. The cubic root of 243310201 is about 624.2905665514.

Adding to 243310201 its reverse (102013342), we get a palindrome (345323543).

The spelling of 243310201 in words is "two hundred forty-three million, three hundred ten thousand, two hundred one".