243223242001 has 2 divisors, whose sum is σ = 243223242002. Its totient is φ = 243223242000.

The previous prime is 243223241981. The next prime is 243223242013. The reversal of 243223242001 is 100242322342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226271462400 + 16951779601 = 475680^2 + 130199^2 .

It is a cyclic number.

It is not a de Polignac number, because 243223242001 - 2¹⁵ = 243223209233 is a prime.

It is not a weakly prime, because it can be changed into another prime (243223242071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121611621000 + 121611621001.

It is an arithmetic number, because the mean of its divisors is an integer number (121611621001).

Almost surely, 2^243223242001 is an apocalyptic number.

It is an amenable number.

243223242001 is a deficient number, since it is larger than the sum of its proper divisors (1).

243223242001 is an equidigital number, since it uses as much as digits as its factorization.

243223242001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 243223242001 its reverse (100242322342), we get a palindrome (343465564343).

The spelling of 243223242001 in words is "two hundred forty-three billion, two hundred twenty-three million, two hundred forty-two thousand, one".