320031012231 has 40 divisors (see below), whose sum is σ = 557991751680. Its totient is φ = 178983894672.

The previous prime is 320031012211. The next prime is 320031012233. The reversal of 320031012231 is 132210130023.

320031012231 is a `hidden beast` number, since 3 + 200 + 310 + 122 + 31 = 666.

It is not a de Polignac number, because 320031012231 - 2⁹ = 320031011719 is a prime.

It is a super-2 number, since 2×320031012231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320031012233) 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 39 ways as a sum of consecutive naturals, for example, 5977911 + ... + 6031208.

It is an arithmetic number, because the mean of its divisors is an integer number (13949793792).

Almost surely, 2^320031012231 is an apocalyptic number.

320031012231 is a deficient number, since it is larger than the sum of its proper divisors (237960739449).

320031012231 is a wasteful number, since it uses less digits than its factorization.

320031012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12009185 (or 12009176 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 320031012231 its reverse (132210130023), we get a palindrome (452241142254).

The spelling of 320031012231 in words is "three hundred twenty billion, thirty-one million, twelve thousand, two hundred thirty-one".