323001100020 has 96 divisors (see below), whose sum is σ = 929728630656. Its totient is φ = 83726092800.

The previous prime is 323001099991. The next prime is 323001100021. The reversal of 323001100020 is 20001100323.

It is a happy number.

It is a super-2 number, since 2×323001100020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 323001099969 and 323001100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323001100021) 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, 2286855 + ... + 2423985.

It is an arithmetic number, because the mean of its divisors is an integer number (9684673236).

Almost surely, 2^323001100020 is an apocalyptic number.

323001100020 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 323001100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464864315328).

323001100020 is an abundant number, since it is smaller than the sum of its proper divisors (606727530636).

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

323001100020 is a wasteful number, since it uses less digits than its factorization.

323001100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138241 (or 138239 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 323001100020 its reverse (20001100323), we get a palindrome (343002200343).

The spelling of 323001100020 in words is "three hundred twenty-three billion, one million, one hundred thousand, twenty".