320310212 has 6 divisors (see below), whose sum is σ = 560542878. Its totient is φ = 160155104.

The previous prime is 320310187. The next prime is 320310223. The reversal of 320310212 is 212013023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 173027716 + 147282496 = 13154^2 + 12136^2 .

It is a super-2 number, since 2×320310212² = 205197263822969888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40038773 + ... + 40038780.

It is an arithmetic number, because the mean of its divisors is an integer number (93423813).

Almost surely, 2^320310212 is an apocalyptic number.

It is an amenable number.

320310212 is a deficient number, since it is larger than the sum of its proper divisors (240232666).

320310212 is a wasteful number, since it uses less digits than its factorization.

320310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80077557 (or 80077555 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320310212 is about 17897.2124086406. The cubic root of 320310212 is about 684.2113302293.

Adding to 320310212 its reverse (212013023), we get a palindrome (532323235).

The spelling of 320310212 in words is "three hundred twenty million, three hundred ten thousand, two hundred twelve".