242313311 has 2 divisors, whose sum is σ = 242313312. Its totient is φ = 242313310.

The previous prime is 242313301. The next prime is 242313319. The reversal of 242313311 is 113313242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242313311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242313319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121156655 + 121156656.

It is an arithmetic number, because the mean of its divisors is an integer number (121156656).

Almost surely, 2^242313311 is an apocalyptic number.

242313311 is a deficient number, since it is larger than the sum of its proper divisors (1).

242313311 is an equidigital number, since it uses as much as digits as its factorization.

242313311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 242313311 is about 15566.4161257497. The cubic root of 242313311 is about 623.4367854896.

Adding to 242313311 its reverse (113313242), we get a palindrome (355626553).

The spelling of 242313311 in words is "two hundred forty-two million, three hundred thirteen thousand, three hundred eleven".