320220200312 has 8 divisors (see below), whose sum is σ = 600412875600. Its totient is φ = 160110100152.

The previous prime is 320220200257. The next prime is 320220200323. The reversal of 320220200312 is 213002022023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20013762512 + ... + 20013762527.

It is an arithmetic number, because the mean of its divisors is an integer number (75051609450).

Almost surely, 2^320220200312 is an apocalyptic number.

It is an amenable number.

320220200312 is a deficient number, since it is larger than the sum of its proper divisors (280192675288).

320220200312 is a wasteful number, since it uses less digits than its factorization.

320220200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40027525045 (or 40027525041 counting only the distinct ones).

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

Adding to 320220200312 its reverse (213002022023), we get a palindrome (533222222335).

The spelling of 320220200312 in words is "three hundred twenty billion, two hundred twenty million, two hundred thousand, three hundred twelve".