320223212 has 12 divisors (see below), whose sum is σ = 564669336. Its totient is φ = 158889120.

The previous prime is 320223139. The next prime is 320223229. The reversal of 320223212 is 212322023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305033 + ... + 306080.

It is an arithmetic number, because the mean of its divisors is an integer number (47055778).

Almost surely, 2^320223212 is an apocalyptic number.

It is an amenable number.

320223212 is a deficient number, since it is larger than the sum of its proper divisors (244446124).

320223212 is a wasteful number, since it uses less digits than its factorization.

320223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611248 (or 611246 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320223212 is about 17894.7816974670. The cubic root of 320223212 is about 684.1493780200.

Adding to 320223212 its reverse (212322023), we get a palindrome (532545235).

The spelling of 320223212 in words is "three hundred twenty million, two hundred twenty-three thousand, two hundred twelve".