320117043281 has 8 divisors (see below), whose sum is σ = 365987653824. Its totient is φ = 274281333840.

The previous prime is 320117043221. The next prime is 320117043317. The reversal of 320117043281 is 182340711023.

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 320117043281 - 2²⁶ = 320049934417 is a prime.

It is a super-2 number, since 2×320117043281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320117043221) 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, 8705615 + ... + 8742308.

It is an arithmetic number, because the mean of its divisors is an integer number (45748456728).

Almost surely, 2^320117043281 is an apocalyptic number.

It is an amenable number.

320117043281 is a deficient number, since it is larger than the sum of its proper divisors (45870610543).

320117043281 is a wasteful number, since it uses less digits than its factorization.

320117043281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17450551.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 320117043281 in words is "three hundred twenty billion, one hundred seventeen million, forty-three thousand, two hundred eighty-one".