321130023200 has 144 divisors (see below), whose sum is σ = 898360626240. Its totient is φ = 109805829120.

The previous prime is 321130023197. The next prime is 321130023241. The reversal of 321130023200 is 2320031123.

It is a super-3 number, since 3×321130023200³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2011931 + ... + 2165669.

It is an arithmetic number, because the mean of its divisors is an integer number (6238615460).

Almost surely, 2^321130023200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321130023200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449180313120).

321130023200 is an abundant number, since it is smaller than the sum of its proper divisors (577230603040).

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

321130023200 is a wasteful number, since it uses less digits than its factorization.

321130023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154139 (or 154126 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 321130023200 its reverse (2320031123), we get a palindrome (323450054323).

The spelling of 321130023200 in words is "three hundred twenty-one billion, one hundred thirty million, twenty-three thousand, two hundred".