242311613 has 2 divisors, whose sum is σ = 242311614. Its totient is φ = 242311612.

The previous prime is 242311609. The next prime is 242311621. The reversal of 242311613 is 316113242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167003929 + 75307684 = 12923^2 + 8678^2 .

It is a cyclic number.

It is not a de Polignac number, because 242311613 - 2² = 242311609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242311603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121155806 + 121155807.

It is an arithmetic number, because the mean of its divisors is an integer number (121155807).

Almost surely, 2^242311613 is an apocalyptic number.

It is an amenable number.

242311613 is a deficient number, since it is larger than the sum of its proper divisors (1).

242311613 is an equidigital number, since it uses as much as digits as its factorization.

242311613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 242311613 is about 15566.3615851618. The cubic root of 242311613 is about 623.4353292508.

Adding to 242311613 its reverse (316113242), we get a palindrome (558424855).

The spelling of 242311613 in words is "two hundred forty-two million, three hundred eleven thousand, six hundred thirteen".