320011302320 has 20 divisors (see below), whose sum is σ = 744026278080. Its totient is φ = 128004520896.

The previous prime is 320011302313. The next prime is 320011302323. The reversal of 320011302320 is 23203110023.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×320011302320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320011302323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000070560 + ... + 2000070719.

It is an arithmetic number, because the mean of its divisors is an integer number (37201313904).

Almost surely, 2^320011302320 is an apocalyptic number.

It is an amenable number.

320011302320 is an abundant number, since it is smaller than the sum of its proper divisors (424014975760).

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

320011302320 is a wasteful number, since it uses less digits than its factorization.

320011302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000141292 (or 4000141286 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320011302320 its reverse (23203110023), we get a palindrome (343214412343).

The spelling of 320011302320 in words is "three hundred twenty billion, eleven million, three hundred two thousand, three hundred twenty".