231313313243 has 2 divisors, whose sum is σ = 231313313244. Its totient is φ = 231313313242.

The previous prime is 231313313201. The next prime is 231313313267. The reversal of 231313313243 is 342313313132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231313313243 - 2⁸ = 231313312987 is a prime.

It is a super-3 number, since 3×231313313243³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (231313313293) 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, 115656656621 + 115656656622.

It is an arithmetic number, because the mean of its divisors is an integer number (115656656622).

Almost surely, 2^231313313243 is an apocalyptic number.

231313313243 is a deficient number, since it is larger than the sum of its proper divisors (1).

231313313243 is an equidigital number, since it uses as much as digits as its factorization.

231313313243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 29.

Adding to 231313313243 its reverse (342313313132), we get a palindrome (573626626375).

The spelling of 231313313243 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred thirteen thousand, two hundred forty-three".