320081491271 has 8 divisors (see below), whose sum is σ = 334060070400. Its totient is φ = 306108078232.

The previous prime is 320081491267. The next prime is 320081491283. The reversal of 320081491271 is 172194180023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320081491271 - 2² = 320081491267 is a prime.

It is a super-2 number, since 2×320081491271² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320081491231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164635 + ... + 1412988.

It is an arithmetic number, because the mean of its divisors is an integer number (41757508800).

Almost surely, 2^320081491271 is an apocalyptic number.

320081491271 is a deficient number, since it is larger than the sum of its proper divisors (13978579129).

320081491271 is a wasteful number, since it uses less digits than its factorization.

320081491271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583045.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 320081491271 in words is "three hundred twenty billion, eighty-one million, four hundred ninety-one thousand, two hundred seventy-one".