321341541320 has 64 divisors (see below), whose sum is σ = 735089491440. Its totient is φ = 126425886720.

The previous prime is 321341541307. The next prime is 321341541371. The reversal of 321341541320 is 23145143123.

It can be written as a sum of positive squares in 8 ways, for example, as 16542589924 + 304798951396 = 128618^2 + 552086^2 .

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 15 ways as a sum of consecutive naturals, for example, 9061544 + ... + 9096936.

Almost surely, 2^321341541320 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 321341541320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367544745720).

321341541320 is an abundant number, since it is smaller than the sum of its proper divisors (413747950120).

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

321341541320 is an frugal number, since it uses more digits than its factorization.

321341541320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35587 (or 35461 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 321341541320 its reverse (23145143123), we get a palindrome (344486684443).

The spelling of 321341541320 in words is "three hundred twenty-one billion, three hundred forty-one million, five hundred forty-one thousand, three hundred twenty".