321320100332 has 288 divisors, whose sum is σ = 779448096000. Its totient is φ = 114198336000.

The previous prime is 321320100323. The next prime is 321320100349. The reversal of 321320100332 is 233001023123.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153081419 + ... + 153083517.

It is an arithmetic number, because the mean of its divisors is an integer number (2706417000).

Almost surely, 2^321320100332 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 321320100332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389724048000).

321320100332 is an abundant number, since it is smaller than the sum of its proper divisors (458127995668).

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

321320100332 is a wasteful number, since it uses less digits than its factorization.

321320100332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 321320100332 its reverse (233001023123), we get a palindrome (554321123455).

The spelling of 321320100332 in words is "three hundred twenty-one billion, three hundred twenty million, one hundred thousand, three hundred thirty-two".