320313122120 has 32 divisors (see below), whose sum is σ = 763098910200. Its totient is φ = 120588469248.

The previous prime is 320313122119. The next prime is 320313122149. The reversal of 320313122120 is 21221313023.

It can be written as a sum of positive squares in 4 ways, for example, as 320059484644 + 253637476 = 565738^2 + 15926^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 320313122092 and 320313122101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235523675 + ... + 235525034.

Almost surely, 2^320313122120 is an apocalyptic number.

It is an amenable number.

320313122120 is an abundant number, since it is smaller than the sum of its proper divisors (442785788080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320313122120 is a wasteful number, since it uses less digits than its factorization.

320313122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471048737 (or 471048733 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320313122120 its reverse (21221313023), we get a palindrome (341534435143).

The spelling of 320313122120 in words is "three hundred twenty billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred twenty".