320143202312 has 16 divisors (see below), whose sum is σ = 613040175360. Its totient is φ = 156665822224.

The previous prime is 320143202311. The next prime is 320143202329. The reversal of 320143202312 is 213202341023.

It is not an unprimeable number, because it can be changed into a prime (320143202311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425721968 + ... + 425722719.

It is an arithmetic number, because the mean of its divisors is an integer number (38315010960).

Almost surely, 2^320143202312 is an apocalyptic number.

It is an amenable number.

320143202312 is a deficient number, since it is larger than the sum of its proper divisors (292896973048).

320143202312 is a wasteful number, since it uses less digits than its factorization.

320143202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851444740 (or 851444736 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 320143202312 its reverse (213202341023), we get a palindrome (533345543335).

The spelling of 320143202312 in words is "three hundred twenty billion, one hundred forty-three million, two hundred two thousand, three hundred twelve".