321423124004420 has 48 divisors (see below), whose sum is σ = 675912863606400. Its totient is φ = 128393246188800.

The previous prime is 321423124004401. The next prime is 321423124004447. The reversal of 321423124004420 is 24400421324123.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93128936 + ... + 96518624.

It is an arithmetic number, because the mean of its divisors is an integer number (14081517991800).

Almost surely, 2^{321423124004420} is an apocalyptic number.

It is an amenable number.

321423124004420 is an abundant number, since it is smaller than the sum of its proper divisors (354489739601980).

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

321423124004420 is a wasteful number, since it uses less digits than its factorization.

321423124004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396188 (or 3396186 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 321423124004420 its reverse (24400421324123), we get a palindrome (345823545328543).

The spelling of 321423124004420 in words is "three hundred twenty-one trillion, four hundred twenty-three billion, one hundred twenty-four million, four thousand, four hundred twenty".