242316331 has 2 divisors, whose sum is σ = 242316332. Its totient is φ = 242316330.

The previous prime is 242316323. The next prime is 242316341. The reversal of 242316331 is 133613242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242316331 - 2³ = 242316323 is a prime.

It is a super-2 number, since 2×242316331² = 117434408538603122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242316296 and 242316305.

It is not a weakly prime, because it can be changed into another prime (242316301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121158165 + 121158166.

It is an arithmetic number, because the mean of its divisors is an integer number (121158166).

Almost surely, 2^242316331 is an apocalyptic number.

242316331 is a deficient number, since it is larger than the sum of its proper divisors (1).

242316331 is an equidigital number, since it uses as much as digits as its factorization.

242316331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 242316331 is about 15566.5131291500. The cubic root of 242316331 is about 623.4393754853.

Adding to 242316331 its reverse (133613242), we get a palindrome (375929573).

The spelling of 242316331 in words is "two hundred forty-two million, three hundred sixteen thousand, three hundred thirty-one".