323321220420 has 48 divisors (see below), whose sum is σ = 987599366208. Its totient is φ = 78380901760.

The previous prime is 323321220413. The next prime is 323321220421. The reversal of 323321220420 is 24022123323.

It is a super-2 number, since 2×323321220420² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323321220421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244939659 + ... + 244940978.

It is an arithmetic number, because the mean of its divisors is an integer number (20574986796).

Almost surely, 2^323321220420 is an apocalyptic number.

323321220420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

323321220420 is an abundant number, since it is smaller than the sum of its proper divisors (664278145788).

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

323321220420 is a wasteful number, since it uses less digits than its factorization.

323321220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489880660 (or 489880658 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 323321220420 its reverse (24022123323), we get a palindrome (347343343743).

The spelling of 323321220420 in words is "three hundred twenty-three billion, three hundred twenty-one million, two hundred twenty thousand, four hundred twenty".