242317123 has 2 divisors, whose sum is σ = 242317124. Its totient is φ = 242317122.

The previous prime is 242317067. The next prime is 242317129. The reversal of 242317123 is 321713242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242317123 - 2⁹ = 242316611 is a prime.

It is not a weakly prime, because it can be changed into another prime (242317129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121158561 + 121158562.

It is an arithmetic number, because the mean of its divisors is an integer number (121158562).

Almost surely, 2^242317123 is an apocalyptic number.

242317123 is a deficient number, since it is larger than the sum of its proper divisors (1).

242317123 is an equidigital number, since it uses as much as digits as its factorization.

242317123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 242317123 is about 15566.5385683523. The cubic root of 242317123 is about 623.4400547124.

The spelling of 242317123 in words is "two hundred forty-two million, three hundred seventeen thousand, one hundred twenty-three".