242236321 has 2 divisors, whose sum is σ = 242236322. Its totient is φ = 242236320.

The previous prime is 242236283. The next prime is 242236343. The reversal of 242236321 is 123632242.

242236321 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., 193515921 + 48720400 = 13911^2 + 6980^2 .

It is a cyclic number.

It is not a de Polignac number, because 242236321 - 2¹⁵ = 242203553 is a prime.

It is not a weakly prime, because it can be changed into another prime (242236361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121118160 + 121118161.

It is an arithmetic number, because the mean of its divisors is an integer number (121118161).

Almost surely, 2^242236321 is an apocalyptic number.

It is an amenable number.

242236321 is a deficient number, since it is larger than the sum of its proper divisors (1).

242236321 is an equidigital number, since it uses as much as digits as its factorization.

242236321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 242236321 is about 15563.9429772792. The cubic root of 242236321 is about 623.3707504841.

Adding to 242236321 its reverse (123632242), we get a palindrome (365868563).

The spelling of 242236321 in words is "two hundred forty-two million, two hundred thirty-six thousand, three hundred twenty-one".