320522020302345 has 8 divisors (see below), whose sum is σ = 512835232483776. Its totient is φ = 170945077494576.

The previous prime is 320522020302331. The next prime is 320522020302371. The reversal of 320522020302345 is 543203020225023.

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

It is not a de Polignac number, because 320522020302345 - 2⁷ = 320522020302217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10684067343397 + ... + 10684067343426.

It is an arithmetic number, because the mean of its divisors is an integer number (64104404060472).

Almost surely, 2^{320522020302345} is an apocalyptic number.

It is an amenable number.

320522020302345 is a deficient number, since it is larger than the sum of its proper divisors (192313212181431).

320522020302345 is a wasteful number, since it uses less digits than its factorization.

320522020302345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21368134686831.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 320522020302345 its reverse (543203020225023), we get a palindrome (863725040527368).

The spelling of 320522020302345 in words is "three hundred twenty trillion, five hundred twenty-two billion, twenty million, three hundred two thousand, three hundred forty-five".