242430211 has 2 divisors, whose sum is σ = 242430212. Its totient is φ = 242430210.

The previous prime is 242430203. The next prime is 242430229. The reversal of 242430211 is 112034242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242430211 - 2³ = 242430203 is a prime.

It is not a weakly prime, because it can be changed into another prime (242430271) 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, 121215105 + 121215106.

It is an arithmetic number, because the mean of its divisors is an integer number (121215106).

Almost surely, 2^242430211 is an apocalyptic number.

242430211 is a deficient number, since it is larger than the sum of its proper divisors (1).

242430211 is an equidigital number, since it uses as much as digits as its factorization.

242430211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242430211 is about 15570.1705514102. The cubic root of 242430211 is about 623.5370249182.

Adding to 242430211 its reverse (112034242), we get a palindrome (354464453).

The spelling of 242430211 in words is "two hundred forty-two million, four hundred thirty thousand, two hundred eleven".