321230023020 has 192 divisors, whose sum is σ = 1051050147840. Its totient is φ = 81291361536.

The previous prime is 321230022973. The next prime is 321230023031. The reversal of 321230023020 is 20320032123.

It is a happy number.

321230023020 is a `hidden beast` number, since 321 + 2 + 300 + 23 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321230022984 and 321230023002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1475514 + ... + 1679166.

It is an arithmetic number, because the mean of its divisors is an integer number (5474219520).

Almost surely, 2^321230023020 is an apocalyptic number.

321230023020 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 321230023020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525525073920).

321230023020 is an abundant number, since it is smaller than the sum of its proper divisors (729820124820).

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

321230023020 is a wasteful number, since it uses less digits than its factorization.

321230023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203821 (or 203813 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 321230023020 its reverse (20320032123), we get a palindrome (341550055143).

The spelling of 321230023020 in words is "three hundred twenty-one billion, two hundred thirty million, twenty-three thousand, twenty".