243313323 has 16 divisors (see below), whose sum is σ = 359715072. Its totient is φ = 145044000.

The previous prime is 243313303. The next prime is 243313339. The reversal of 243313323 is 323313342.

It is a happy number.

It is not a de Polignac number, because 243313323 - 2¹⁰ = 243312299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243313293 and 243313302.

It is not an unprimeable number, because it can be changed into a prime (243313303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58423 + ... + 62448.

It is an arithmetic number, because the mean of its divisors is an integer number (22482192).

Almost surely, 2^243313323 is an apocalyptic number.

243313323 is a deficient number, since it is larger than the sum of its proper divisors (116401749).

243313323 is a wasteful number, since it uses less digits than its factorization.

243313323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120946.

The product of its digits is 3888, while the sum is 24.

The square root of 243313323 is about 15598.5038705640. The cubic root of 243313323 is about 624.2932367050.

Adding to 243313323 its reverse (323313342), we get a palindrome (566626665).

The spelling of 243313323 in words is "two hundred forty-three million, three hundred thirteen thousand, three hundred twenty-three".