320132331313 has 4 divisors (see below), whose sum is σ = 321155118628. Its totient is φ = 319109544000.

The previous prime is 320132331293. The next prime is 320132331317. The reversal of 320132331313 is 313133231023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313133231023 = 619 ⋅505869517.

It can be written as a sum of positive squares in 2 ways, for example, as 96788187664 + 223344143649 = 311108^2 + 472593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320132331313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320132331317) 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, 511393188 + ... + 511393813.

It is an arithmetic number, because the mean of its divisors is an integer number (80288779657).

Almost surely, 2^320132331313 is an apocalyptic number.

It is an amenable number.

320132331313 is a deficient number, since it is larger than the sum of its proper divisors (1022787315).

320132331313 is a wasteful number, since it uses less digits than its factorization.

320132331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022787314.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 320132331313 its reverse (313133231023), we get a palindrome (633265562336).

The spelling of 320132331313 in words is "three hundred twenty billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred thirteen".