321311324 has 6 divisors (see below), whose sum is σ = 562294824. Its totient is φ = 160655660.

The previous prime is 321311323. The next prime is 321311327. The reversal of 321311324 is 423113123.

It is a junction number, because it is equal to n+sod(n) for n = 321311296 and 321311305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321311321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40163912 + ... + 40163919.

It is an arithmetic number, because the mean of its divisors is an integer number (93715804).

Almost surely, 2^321311324 is an apocalyptic number.

It is an amenable number.

321311324 is a deficient number, since it is larger than the sum of its proper divisors (240983500).

321311324 is a wasteful number, since it uses less digits than its factorization.

321311324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80327835 (or 80327833 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 321311324 is about 17925.1589672170. The cubic root of 321311324 is about 684.9234105500.

Adding to 321311324 its reverse (423113123), we get a palindrome (744424447).

The spelling of 321311324 in words is "three hundred twenty-one million, three hundred eleven thousand, three hundred twenty-four".