321431103200420 has 24 divisors (see below), whose sum is σ = 704353373970624. Its totient is φ = 122982335137376.

The previous prime is 321431103200381. The next prime is 321431103200453. The reversal of 321431103200420 is 24002301134123.

It is a self number, because there is not a number n which added to its sum of digits gives 321431103200420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349381633454 + ... + 349381634373.

It is an arithmetic number, because the mean of its divisors is an integer number (29348057248776).

Almost surely, 2^{321431103200420} is an apocalyptic number.

It is an amenable number.

321431103200420 is an abundant number, since it is smaller than the sum of its proper divisors (382922270770204).

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

321431103200420 is a wasteful number, since it uses less digits than its factorization.

321431103200420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698763267859 (or 698763267857 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321431103200420 its reverse (24002301134123), we get a palindrome (345433404334543).

The spelling of 321431103200420 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, one hundred three million, two hundred thousand, four hundred twenty".