320008017231 has 48 divisors (see below), whose sum is σ = 546209733888. Its totient is φ = 176734224000.

The previous prime is 320008017227. The next prime is 320008017233. The reversal of 320008017231 is 132710800023.

It is not a de Polignac number, because 320008017231 - 2² = 320008017227 is a prime.

It is a super-2 number, since 2×320008017231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320008017195 and 320008017204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320008017233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 302545 + ... + 855306.

It is an arithmetic number, because the mean of its divisors is an integer number (11379369456).

Almost surely, 2^320008017231 is an apocalyptic number.

320008017231 is a deficient number, since it is larger than the sum of its proper divisors (226201716657).

320008017231 is a wasteful number, since it uses less digits than its factorization.

320008017231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158012 (or 1158009 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 320008017231 its reverse (132710800023), we get a palindrome (452718817254).

The spelling of 320008017231 in words is "three hundred twenty billion, eight million, seventeen thousand, two hundred thirty-one".