321132424 has 8 divisors (see below), whose sum is σ = 602123310. Its totient is φ = 160566208.

The previous prime is 321132401. The next prime is 321132443. The reversal of 321132424 is 424231123.

It can be written as a sum of positive squares in only one way, i.e., 176411524 + 144720900 = 13282^2 + 12030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 321132395 and 321132404.

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 as a sum of consecutive naturals, namely, 20070769 + ... + 20070784.

Almost surely, 2^321132424 is an apocalyptic number.

It is an amenable number.

321132424 is a deficient number, since it is larger than the sum of its proper divisors (280990886).

321132424 is a wasteful number, since it uses less digits than its factorization.

321132424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40141559 (or 40141555 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 321132424 is about 17920.1680795689. The cubic root of 321132424 is about 684.7962695320.

Adding to 321132424 its reverse (424231123), we get a palindrome (745363547).

The spelling of 321132424 in words is "three hundred twenty-one million, one hundred thirty-two thousand, four hundred twenty-four".