331230022320 has 160 divisors (see below), whose sum is σ = 1088945303040. Its totient is φ = 82999848960.

The previous prime is 331230022297. The next prime is 331230022327. The reversal of 331230022320 is 23220032133.

It is a super-2 number, since 2×331230022320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331230022327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2510151 + ... + 2638809.

It is an arithmetic number, because the mean of its divisors is an integer number (6805908144).

Almost surely, 2^331230022320 is an apocalyptic number.

331230022320 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 331230022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544472651520).

331230022320 is an abundant number, since it is smaller than the sum of its proper divisors (757715280720).

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

331230022320 is a wasteful number, since it uses less digits than its factorization.

331230022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129323 (or 129317 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 331230022320 its reverse (23220032133), we get a palindrome (354450054453).

The spelling of 331230022320 in words is "three hundred thirty-one billion, two hundred thirty million, twenty-two thousand, three hundred twenty".