321321344532 has 24 divisors (see below), whose sum is σ = 750517231296. Its totient is φ = 106997482368.

The previous prime is 321321344479. The next prime is 321321344549. The reversal of 321321344532 is 235443123123.

It is a junction number, because it is equal to n+sod(n) for n = 321321344493 and 321321344502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13691848 + ... + 13715295.

It is an arithmetic number, because the mean of its divisors is an integer number (31271551304).

Almost surely, 2^321321344532 is an apocalyptic number.

It is an amenable number.

321321344532 is an abundant number, since it is smaller than the sum of its proper divisors (429195886764).

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

321321344532 is a wasteful number, since it uses less digits than its factorization.

321321344532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27408127 (or 27408125 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

Adding to 321321344532 its reverse (235443123123), we get a palindrome (556764467655).

The spelling of 321321344532 in words is "three hundred twenty-one billion, three hundred twenty-one million, three hundred forty-four thousand, five hundred thirty-two".