242432321 has 2 divisors, whose sum is σ = 242432322. Its totient is φ = 242432320.

The previous prime is 242432317. The next prime is 242432327. The reversal of 242432321 is 123234242.

242432321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224250625 + 18181696 = 14975^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 242432321 - 2² = 242432317 is a prime.

It is not a weakly prime, because it can be changed into another prime (242432327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121216160 + 121216161.

It is an arithmetic number, because the mean of its divisors is an integer number (121216161).

Almost surely, 2^242432321 is an apocalyptic number.

It is an amenable number.

242432321 is a deficient number, since it is larger than the sum of its proper divisors (1).

242432321 is an equidigital number, since it uses as much as digits as its factorization.

242432321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 23.

The square root of 242432321 is about 15570.2383090305. The cubic root of 242432321 is about 623.5388339052.

Adding to 242432321 its reverse (123234242), we get a palindrome (365666563).

The spelling of 242432321 in words is "two hundred forty-two million, four hundred thirty-two thousand, three hundred twenty-one".