320213343 has 16 divisors (see below), whose sum is σ = 452549376. Its totient is φ = 200703360.

The previous prime is 320213323. The next prime is 320213351. The reversal of 320213343 is 343312023.

It is not a de Polignac number, because 320213343 - 2¹² = 320209247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320213323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54478 + ... + 60068.

It is an arithmetic number, because the mean of its divisors is an integer number (28284336).

Almost surely, 2^320213343 is an apocalyptic number.

320213343 is a deficient number, since it is larger than the sum of its proper divisors (132336033).

320213343 is a wasteful number, since it uses less digits than its factorization.

320213343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 320213343 is about 17894.5059445630. The cubic root of 320213343 is about 684.1423496522.

Adding to 320213343 its reverse (343312023), we get a palindrome (663525366).

The spelling of 320213343 in words is "three hundred twenty million, two hundred thirteen thousand, three hundred forty-three".