321424124 has 18 divisors (see below), whose sum is σ = 654328080. Its totient is φ = 137753112.

The previous prime is 321424109. The next prime is 321424193. The reversal of 321424124 is 421424123.

It is a self number, because there is not a number n which added to its sum of digits gives 321424124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 819764 + ... + 820155.

It is an arithmetic number, because the mean of its divisors is an integer number (36351560).

Almost surely, 2^321424124 is an apocalyptic number.

It is an amenable number.

321424124 is an abundant number, since it is smaller than the sum of its proper divisors (332903956).

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

321424124 is a wasteful number, since it uses less digits than its factorization.

321424124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639937 (or 1639928 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 321424124 is about 17928.3051067300. The cubic root of 321424124 is about 685.0035512274.

Adding to 321424124 its reverse (421424123), we get a palindrome (742848247).

Subtracting 321424124 from its reverse (421424123), we obtain a palindrome (99999999).

The spelling of 321424124 in words is "three hundred twenty-one million, four hundred twenty-four thousand, one hundred twenty-four".