320505210122352 has 160 divisors (see below), whose sum is σ = 888134515467264. Its totient is φ = 99243353088000.

The previous prime is 320505210122341. The next prime is 320505210122491. The reversal of 320505210122352 is 253221012505023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16888852 + ... + 30434252.

Almost surely, 2^{320505210122352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320505210122352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444067257733632).

320505210122352 is an abundant number, since it is smaller than the sum of its proper divisors (567629305344912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320505210122352 is a wasteful number, since it uses less digits than its factorization.

320505210122352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13545807 (or 13545801 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 320505210122352 its reverse (253221012505023), we get a palindrome (573726222627375).

The spelling of 320505210122352 in words is "three hundred twenty trillion, five hundred five billion, two hundred ten million, one hundred twenty-two thousand, three hundred fifty-two".