320330032031 has 4 divisors (see below), whose sum is σ = 334257424752. Its totient is φ = 306402639312.

The previous prime is 320330032013. The next prime is 320330032039. The reversal of 320330032031 is 130230033023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320330032031 is a prime.

It is a super-2 number, since 2×320330032031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320330031994 and 320330032012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320330032039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6963696326 + ... + 6963696371.

It is an arithmetic number, because the mean of its divisors is an integer number (83564356188).

Almost surely, 2^320330032031 is an apocalyptic number.

320330032031 is a deficient number, since it is larger than the sum of its proper divisors (13927392721).

320330032031 is a wasteful number, since it uses less digits than its factorization.

320330032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13927392720.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 320330032031 its reverse (130230033023), we get a palindrome (450560065054).

The spelling of 320330032031 in words is "three hundred twenty billion, three hundred thirty million, thirty-two thousand, thirty-one".