242891303 has 2 divisors, whose sum is σ = 242891304. Its totient is φ = 242891302.

The previous prime is 242891279. The next prime is 242891309. The reversal of 242891303 is 303198242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242891303 - 2¹⁰ = 242890279 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242891303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242891309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121445651 + 121445652.

It is an arithmetic number, because the mean of its divisors is an integer number (121445652).

Almost surely, 2^242891303 is an apocalyptic number.

242891303 is a deficient number, since it is larger than the sum of its proper divisors (1).

242891303 is an equidigital number, since it uses as much as digits as its factorization.

242891303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 242891303 is about 15584.9704202478. The cubic root of 242891303 is about 623.9320882357.

The spelling of 242891303 in words is "two hundred forty-two million, eight hundred ninety-one thousand, three hundred three".