321442232140331 has 2 divisors, whose sum is σ = 321442232140332. Its totient is φ = 321442232140330.

The previous prime is 321442232140319. The next prime is 321442232140417. The reversal of 321442232140331 is 133041232244123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321442232140331 is a prime.

It is a super-2 number, since 2×321442232140331² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321442232140291 and 321442232140300.

It is not a weakly prime, because it can be changed into another prime (321442232140231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160721116070165 + 160721116070166.

It is an arithmetic number, because the mean of its divisors is an integer number (160721116070166).

Almost surely, 2^{321442232140331} is an apocalyptic number.

321442232140331 is a deficient number, since it is larger than the sum of its proper divisors (1).

321442232140331 is an equidigital number, since it uses as much as digits as its factorization.

321442232140331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 321442232140331 its reverse (133041232244123), we get a palindrome (454483464384454).

The spelling of 321442232140331 in words is "three hundred twenty-one trillion, four hundred forty-two billion, two hundred thirty-two million, one hundred forty thousand, three hundred thirty-one".