242421043 has 2 divisors, whose sum is σ = 242421044. Its totient is φ = 242421042.

The previous prime is 242421013. The next prime is 242421097. The reversal of 242421043 is 340124242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242421043 - 2⁹ = 242420531 is a prime.

It is not a weakly prime, because it can be changed into another prime (242421013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121210521 + 121210522.

It is an arithmetic number, because the mean of its divisors is an integer number (121210522).

Almost surely, 2^242421043 is an apocalyptic number.

242421043 is a deficient number, since it is larger than the sum of its proper divisors (1).

242421043 is an equidigital number, since it uses as much as digits as its factorization.

242421043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242421043 is about 15569.8761395202. The cubic root of 242421043 is about 623.5291647049.

Adding to 242421043 its reverse (340124242), we get a palindrome (582545285).

The spelling of 242421043 in words is "two hundred forty-two million, four hundred twenty-one thousand, forty-three".