320331101320 has 32 divisors (see below), whose sum is σ = 763141743000. Its totient is φ = 120595237888.

The previous prime is 320331101281. The next prime is 320331101329. The reversal of 320331101320 is 23101133023.

It can be written as a sum of positive squares in 4 ways, for example, as 191618058564 + 128713042756 = 437742^2 + 358766^2 .

It is a super-2 number, since 2×320331101320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320331101329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235536895 + ... + 235538254.

Almost surely, 2^320331101320 is an apocalyptic number.

It is an amenable number.

320331101320 is an abundant number, since it is smaller than the sum of its proper divisors (442810641680).

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

320331101320 is a wasteful number, since it uses less digits than its factorization.

320331101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471075177 (or 471075173 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 320331101320 its reverse (23101133023), we get a palindrome (343432234343).

The spelling of 320331101320 in words is "three hundred twenty billion, three hundred thirty-one million, one hundred one thousand, three hundred twenty".