321130132 has 24 divisors (see below), whose sum is σ = 579237120. Its totient is φ = 155697120.

The previous prime is 321130093. The next prime is 321130189. The reversal of 321130132 is 231031123.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12657 + ... + 28327.

It is an arithmetic number, because the mean of its divisors is an integer number (24134880).

Almost surely, 2^321130132 is an apocalyptic number.

It is an amenable number.

321130132 is a deficient number, since it is larger than the sum of its proper divisors (258106988).

321130132 is a wasteful number, since it uses less digits than its factorization.

321130132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15831 (or 15829 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 321130132 is about 17920.1041291617. The cubic root of 321130132 is about 684.7946403424.

Adding to 321130132 its reverse (231031123), we get a palindrome (552161255).

Subtracting from 321130132 its reverse (231031123), we obtain a palindrome (90099009).

The spelling of 321130132 in words is "three hundred twenty-one million, one hundred thirty thousand, one hundred thirty-two".