321125424 has 40 divisors (see below), whose sum is σ = 830242992. Its totient is φ = 106955520.

The previous prime is 321125417. The next prime is 321125429. The reversal of 321125424 is 424521123.

321125424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 321125394 and 321125403.

It is not an unprimeable number, because it can be changed into a prime (321125429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91054 + ... + 94514.

Almost surely, 2^321125424 is an apocalyptic number.

It is an amenable number.

321125424 is an abundant number, since it is smaller than the sum of its proper divisors (509117568).

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

321125424 is a wasteful number, since it uses less digits than its factorization.

321125424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405 (or 5399 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 321125424 is about 17919.9727678365. The cubic root of 321125424 is about 684.7912937978.

Adding to 321125424 its reverse (424521123), we get a palindrome (745646547).

The spelling of 321125424 in words is "three hundred twenty-one million, one hundred twenty-five thousand, four hundred twenty-four".