320012310031 has 4 divisors (see below), whose sum is σ = 333925888752. Its totient is φ = 306098731312.

The previous prime is 320012309977. The next prime is 320012310053. The reversal of 320012310031 is 130013210023.

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

It is a cyclic number.

It is not a de Polignac number, because 320012310031 - 2¹³ = 320012301839 is a prime.

It is a super-2 number, since 2×320012310031² (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 = 320012309987 and 320012310014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012370031) 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, 6956789326 + ... + 6956789371.

It is an arithmetic number, because the mean of its divisors is an integer number (83481472188).

Almost surely, 2^320012310031 is an apocalyptic number.

320012310031 is a deficient number, since it is larger than the sum of its proper divisors (13913578721).

320012310031 is a wasteful number, since it uses less digits than its factorization.

320012310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13913578720.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 320012310031 its reverse (130013210023), we get a palindrome (450025520054).

The spelling of 320012310031 in words is "three hundred twenty billion, twelve million, three hundred ten thousand, thirty-one".