320343211 has 8 divisors (see below), whose sum is σ = 344378880. Its totient is φ = 297025128.

The previous prime is 320343203. The next prime is 320343227. The reversal of 320343211 is 112343023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320343211 - 2³ = 320343203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320343311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178471 + ... + 180256.

It is an arithmetic number, because the mean of its divisors is an integer number (43047360).

Almost surely, 2^320343211 is an apocalyptic number.

320343211 is a deficient number, since it is larger than the sum of its proper divisors (24035669).

320343211 is a wasteful number, since it uses less digits than its factorization.

320343211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358793.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320343211 is about 17898.1342882436. The cubic root of 320343211 is about 684.2348256966.

Adding to 320343211 its reverse (112343023), we get a palindrome (432686234).

It can be divided in two parts, 32034 and 3211, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 320343211 in words is "three hundred twenty million, three hundred forty-three thousand, two hundred eleven".