321013123220432 has 40 divisors (see below), whose sum is σ = 622740727016520. Its totient is φ = 160305868247040.

The previous prime is 321013123220411. The next prime is 321013123220509. The reversal of 321013123220432 is 234022321310123.

It can be written as a sum of positive squares in 4 ways, for example, as 41032685016976 + 279980438203456 = 6405676^2 + 16732616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321013123220395 and 321013123220404.

It is a congruent number.

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, 174996632 + ... + 176821512.

It is an arithmetic number, because the mean of its divisors is an integer number (15568518175413).

Almost surely, 2^{321013123220432} is an apocalyptic number.

It is an amenable number.

321013123220432 is a deficient number, since it is larger than the sum of its proper divisors (301727603796088).

321013123220432 is a wasteful number, since it uses less digits than its factorization.

321013123220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838631 (or 1838625 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 321013123220432 its reverse (234022321310123), we get a palindrome (555035444530555).

The spelling of 321013123220432 in words is "three hundred twenty-one trillion, thirteen billion, one hundred twenty-three million, two hundred twenty thousand, four hundred thirty-two".