320331121320031 has 4 divisors (see below), whose sum is σ = 320331158105200. Its totient is φ = 320331084534864.

The previous prime is 320331121319941. The next prime is 320331121320043. The reversal of 320331121320031 is 130023121133023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 320331121320031 - 2³⁵ = 320296761581663 is a prime.

It is a super-2 number, since 2×320331121320031² (a number of 30 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 = 320331121319978 and 320331121320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320331121320631) 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, 2840110 + ... + 25470148.

It is an arithmetic number, because the mean of its divisors is an integer number (80082789526300).

Almost surely, 2^{320331121320031} is an apocalyptic number.

320331121320031 is a deficient number, since it is larger than the sum of its proper divisors (36785169).

320331121320031 is a wasteful number, since it uses less digits than its factorization.

320331121320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36785168.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 320331121320031 its reverse (130023121133023), we get a palindrome (450354242453054).

The spelling of 320331121320031 in words is "three hundred twenty trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred twenty thousand, thirty-one".