321332124421 has 16 divisors (see below), whose sum is σ = 401487187968. Its totient is φ = 249847844400.

The previous prime is 321332124409. The next prime is 321332124437. The reversal of 321332124421 is 124421233123.

It is not a de Polignac number, because 321332124421 - 2²⁷ = 321197906693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321332124421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321332124401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4470985 + ... + 4542286.

It is an arithmetic number, because the mean of its divisors is an integer number (25092949248).

Almost surely, 2^321332124421 is an apocalyptic number.

It is an amenable number.

321332124421 is a deficient number, since it is larger than the sum of its proper divisors (80155063547).

321332124421 is a wasteful number, since it uses less digits than its factorization.

321332124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9013752.

The product of its digits is 6912, while the sum is 28.

Adding to 321332124421 its reverse (124421233123), we get a palindrome (445753357544).

The spelling of 321332124421 in words is "three hundred twenty-one billion, three hundred thirty-two million, one hundred twenty-four thousand, four hundred twenty-one".