320215343 has 12 divisors (see below), whose sum is σ = 372992040. Its totient is φ = 274104432.

The previous prime is 320215327. The next prime is 320215373. The reversal of 320215343 is 343512023.

It is not a de Polignac number, because 320215343 - 2⁴ = 320215327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320215373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36680 + ... + 44562.

It is an arithmetic number, because the mean of its divisors is an integer number (31082670).

Almost surely, 2^320215343 is an apocalyptic number.

320215343 is a deficient number, since it is larger than the sum of its proper divisors (52776697).

320215343 is an equidigital number, since it uses as much as digits as its factorization.

320215343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 320215343 is about 17894.5618275497. The cubic root of 320215343 is about 684.1437739961.

Adding to 320215343 its reverse (343512023), we get a palindrome (663727366).

The spelling of 320215343 in words is "three hundred twenty million, two hundred fifteen thousand, three hundred forty-three".