320333311020 has 24 divisors (see below), whose sum is σ = 896933271024. Its totient is φ = 85422216256.

The previous prime is 320333311009. The next prime is 320333311037. The reversal of 320333311020 is 20113333023.

It is a super-2 number, since 2×320333311020² (a number of 24 digits) contains 22 as substring.

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, 2669444199 + ... + 2669444318.

It is an arithmetic number, because the mean of its divisors is an integer number (37372219626).

Almost surely, 2^320333311020 is an apocalyptic number.

320333311020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320333311020 is an abundant number, since it is smaller than the sum of its proper divisors (576599960004).

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

320333311020 is a wasteful number, since it uses less digits than its factorization.

320333311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338888529 (or 5338888527 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 320333311020 its reverse (20113333023), we get a palindrome (340446644043).

The spelling of 320333311020 in words is "three hundred twenty billion, three hundred thirty-three million, three hundred eleven thousand, twenty".