320311102012320 has 384 divisors, whose sum is σ = 1069371779616000. Its totient is φ = 80365616529408.

The previous prime is 320311102012277. The next prime is 320311102012333. The reversal of 320311102012320 is 23210201113023.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12247572364 + ... + 12247598516.

It is an arithmetic number, because the mean of its divisors is an integer number (2784822342750).

Almost surely, 2^{320311102012320} is an apocalyptic number.

320311102012320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320311102012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534685889808000).

320311102012320 is an abundant number, since it is smaller than the sum of its proper divisors (749060677603680).

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

320311102012320 is a wasteful number, since it uses less digits than its factorization.

320311102012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35352 (or 35344 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 320311102012320 its reverse (23210201113023), we get a palindrome (343521303125343).

The spelling of 320311102012320 in words is "three hundred twenty trillion, three hundred eleven billion, one hundred two million, twelve thousand, three hundred twenty".