320342271 has 32 divisors (see below), whose sum is σ = 466560000. Its totient is φ = 194727936.

The previous prime is 320342249. The next prime is 320342327. The reversal of 320342271 is 172243023.

It is not a de Polignac number, because 320342271 - 2⁹ = 320341759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320342201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255855 + ... + 257103.

It is an arithmetic number, because the mean of its divisors is an integer number (14580000).

Almost surely, 2^320342271 is an apocalyptic number.

320342271 is a deficient number, since it is larger than the sum of its proper divisors (146217729).

320342271 is a wasteful number, since it uses less digits than its factorization.

320342271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 320342271 is about 17898.1080285040. The cubic root of 320342271 is about 684.2341564339.

Adding to 320342271 its reverse (172243023), we get a palindrome (492585294).

The spelling of 320342271 in words is "three hundred twenty million, three hundred forty-two thousand, two hundred seventy-one".