242102243 has 2 divisors, whose sum is σ = 242102244. Its totient is φ = 242102242.

The previous prime is 242102239. The next prime is 242102293. The reversal of 242102243 is 342201242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242102243 - 2² = 242102239 is a prime.

It is a super-2 number, since 2×242102243² = 117226992131262098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242102213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121051121 + 121051122.

It is an arithmetic number, because the mean of its divisors is an integer number (121051122).

Almost surely, 2^242102243 is an apocalyptic number.

242102243 is a deficient number, since it is larger than the sum of its proper divisors (1).

242102243 is an equidigital number, since it uses as much as digits as its factorization.

242102243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242102243 is about 15559.6350535609. The cubic root of 242102243 is about 623.2557171859.

Adding to 242102243 its reverse (342201242), we get a palindrome (584303485).

The spelling of 242102243 in words is "two hundred forty-two million, one hundred two thousand, two hundred forty-three".