320023304343243 has 12 divisors (see below), whose sum is σ = 465784554923688. Its totient is φ = 211720252236480.

The previous prime is 320023304343191. The next prime is 320023304343251. The reversal of 320023304343243 is 342343403320023.

320023304343243 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 2 + 3 + 304 + 343 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 320023304343243 - 2¹⁰ = 320023304342219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320023304343198 and 320023304343207.

It is not an unprimeable number, because it can be changed into a prime (320023304341243) 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 in 11 ways as a sum of consecutive naturals, for example, 135718109230 + ... + 135718111587.

It is an arithmetic number, because the mean of its divisors is an integer number (38815379576974).

Almost surely, 2^{320023304343243} is an apocalyptic number.

320023304343243 is a deficient number, since it is larger than the sum of its proper divisors (145761250580445).

320023304343243 is a wasteful number, since it uses less digits than its factorization.

320023304343243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271436220954 (or 271436220951 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 36.

Adding to 320023304343243 its reverse (342343403320023), we get a palindrome (662366707663266).

The spelling of 320023304343243 in words is "three hundred twenty trillion, twenty-three billion, three hundred four million, three hundred forty-three thousand, two hundred forty-three".