320230143 has 6 divisors (see below), whose sum is σ = 462554664. Its totient is φ = 213486756.

The previous prime is 320230133. The next prime is 320230147. The reversal of 320230143 is 341032023.

320230143 is a `hidden beast` number, since 320 + 2 + 301 + 43 = 666.

It is not a de Polignac number, because 320230143 - 2¹⁴ = 320213759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320230147) 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 5 ways as a sum of consecutive naturals, for example, 17790555 + ... + 17790572.

It is an arithmetic number, because the mean of its divisors is an integer number (77092444).

Almost surely, 2^320230143 is an apocalyptic number.

320230143 is a deficient number, since it is larger than the sum of its proper divisors (142324521).

320230143 is a wasteful number, since it uses less digits than its factorization.

320230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35581133 (or 35581130 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 320230143 is about 17894.9753562278. The cubic root of 320230143 is about 684.1543139573.

Adding to 320230143 its reverse (341032023), we get a palindrome (661262166).

The spelling of 320230143 in words is "three hundred twenty million, two hundred thirty thousand, one hundred forty-three".