320331012271 has 2 divisors, whose sum is σ = 320331012272. Its totient is φ = 320331012270.

The previous prime is 320331012251. The next prime is 320331012301. The reversal of 320331012271 is 172210133023.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (172210133023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320331012271 - 2²¹ = 320328915119 is a prime.

It is a super-2 number, since 2×320331012271² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320331012241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160165506135 + 160165506136.

It is an arithmetic number, because the mean of its divisors is an integer number (160165506136).

Almost surely, 2^320331012271 is an apocalyptic number.

320331012271 is a deficient number, since it is larger than the sum of its proper divisors (1).

320331012271 is an equidigital number, since it uses as much as digits as its factorization.

320331012271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 320331012271 its reverse (172210133023), we get a palindrome (492541145294).

The spelling of 320331012271 in words is "three hundred twenty billion, three hundred thirty-one million, twelve thousand, two hundred seventy-one".