243211031343 has 24 divisors (see below), whose sum is σ = 422622345600. Its totient is φ = 131663114064.

The previous prime is 243211031333. The next prime is 243211031359. The reversal of 243211031343 is 343130112342.

It is a happy number.

243211031343 is a `hidden beast` number, since 24 + 321 + 1 + 0 + 313 + 4 + 3 = 666.

It is not a de Polignac number, because 243211031343 - 2¹⁷ = 243210900271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243211031303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101590713 + ... + 101593106.

It is an arithmetic number, because the mean of its divisors is an integer number (17609264400).

Almost surely, 2^243211031343 is an apocalyptic number.

243211031343 is a deficient number, since it is larger than the sum of its proper divisors (179411314257).

243211031343 is a wasteful number, since it uses less digits than its factorization.

243211031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203183851 (or 203183848 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 243211031343 its reverse (343130112342), we get a palindrome (586341143685).

The spelling of 243211031343 in words is "two hundred forty-three billion, two hundred eleven million, thirty-one thousand, three hundred forty-three".