320200312231 has 4 divisors (see below), whose sum is σ = 324586617952. Its totient is φ = 315814006512.

The previous prime is 320200312193. The next prime is 320200312249. The reversal of 320200312231 is 132213002023.

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-320200312231 is a prime.

It is a super-3 number, since 3×320200312231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320200312199 and 320200312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320200310231) 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, 2193152751 + ... + 2193152896.

It is an arithmetic number, because the mean of its divisors is an integer number (81146654488).

Almost surely, 2^320200312231 is an apocalyptic number.

320200312231 is a deficient number, since it is larger than the sum of its proper divisors (4386305721).

320200312231 is an equidigital number, since it uses as much as digits as its factorization.

320200312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386305720.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320200312231 its reverse (132213002023), we get a palindrome (452413314254).

The spelling of 320200312231 in words is "three hundred twenty billion, two hundred million, three hundred twelve thousand, two hundred thirty-one".