311313243343 has 2 divisors, whose sum is σ = 311313243344. Its totient is φ = 311313243342.

The previous prime is 311313243331. The next prime is 311313243419. The reversal of 311313243343 is 343342313113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311313243343 - 2¹³ = 311313235151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311313243323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155656621671 + 155656621672.

It is an arithmetic number, because the mean of its divisors is an integer number (155656621672).

Almost surely, 2^311313243343 is an apocalyptic number.

311313243343 is a deficient number, since it is larger than the sum of its proper divisors (1).

311313243343 is an equidigital number, since it uses as much as digits as its factorization.

311313243343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 31.

Adding to 311313243343 its reverse (343342313113), we get a palindrome (654655556456).

The spelling of 311313243343 in words is "three hundred eleven billion, three hundred thirteen million, two hundred forty-three thousand, three hundred forty-three".