242130243 has 16 divisors (see below), whose sum is σ = 350796800. Its totient is φ = 147990240.

The previous prime is 242130241. The next prime is 242130247. The reversal of 242130243 is 342031242.

It is not a de Polignac number, because 242130243 - 2¹ = 242130241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242130241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66748 + ... + 70281.

It is an arithmetic number, because the mean of its divisors is an integer number (21924800).

Almost surely, 2^242130243 is an apocalyptic number.

242130243 is a deficient number, since it is larger than the sum of its proper divisors (108666557).

242130243 is a wasteful number, since it uses less digits than its factorization.

242130243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137082.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 242130243 is about 15560.5347915809. The cubic root of 242130243 is about 623.2797435190.

Adding to 242130243 its reverse (342031242), we get a palindrome (584161485).

Subtracting 242130243 from its reverse (342031242), we obtain a palindrome (99900999).

The spelling of 242130243 in words is "two hundred forty-two million, one hundred thirty thousand, two hundred forty-three".