320140335131 has 2 divisors, whose sum is σ = 320140335132. Its totient is φ = 320140335130.

The previous prime is 320140335127. The next prime is 320140335149. The reversal of 320140335131 is 131533041023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320140335131 - 2² = 320140335127 is a prime.

It is a super-3 number, since 3×320140335131³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 320140335131.

It is not a weakly prime, because it can be changed into another prime (320140335121) 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 as a sum of consecutive naturals, namely, 160070167565 + 160070167566.

It is an arithmetic number, because the mean of its divisors is an integer number (160070167566).

Almost surely, 2^320140335131 is an apocalyptic number.

320140335131 is a deficient number, since it is larger than the sum of its proper divisors (1).

320140335131 is an equidigital number, since it uses as much as digits as its factorization.

320140335131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 320140335131 its reverse (131533041023), we get a palindrome (451673376154).

The spelling of 320140335131 in words is "three hundred twenty billion, one hundred forty million, three hundred thirty-five thousand, one hundred thirty-one".