321331132 has 12 divisors (see below), whose sum is σ = 563245200. Its totient is φ = 160403936.

The previous prime is 321331123. The next prime is 321331133. The reversal of 321331132 is 231133123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321331133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62632 + ... + 67567.

It is an arithmetic number, because the mean of its divisors is an integer number (46937100).

Almost surely, 2^321331132 is an apocalyptic number.

It is an amenable number.

321331132 is a deficient number, since it is larger than the sum of its proper divisors (241914068).

321331132 is a wasteful number, since it uses less digits than its factorization.

321331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130820 (or 130818 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 321331132 is about 17925.7114782092. The cubic root of 321331132 is about 684.9374848378.

Adding to 321331132 its reverse (231133123), we get a palindrome (552464255).

The spelling of 321331132 in words is "three hundred twenty-one million, three hundred thirty-one thousand, one hundred thirty-two".