242620303 has 2 divisors, whose sum is σ = 242620304. Its totient is φ = 242620302.

The previous prime is 242620267. The next prime is 242620309. The reversal of 242620303 is 303026242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242620303 - 2⁹ = 242619791 is a prime.

It is a super-2 number, since 2×242620303² = 117729222855623618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242620309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121310151 + 121310152.

It is an arithmetic number, because the mean of its divisors is an integer number (121310152).

Almost surely, 2^242620303 is an apocalyptic number.

242620303 is a deficient number, since it is larger than the sum of its proper divisors (1).

242620303 is an equidigital number, since it uses as much as digits as its factorization.

242620303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 242620303 is about 15576.2737199884. The cubic root of 242620303 is about 623.6999562530.

Adding to 242620303 its reverse (303026242), we get a palindrome (545646545).

The spelling of 242620303 in words is "two hundred forty-two million, six hundred twenty thousand, three hundred three".