321441144413421 has 4 divisors (see below), whose sum is σ = 428588192551232. Its totient is φ = 214294096275612.

The previous prime is 321441144413387. The next prime is 321441144413491. The reversal of 321441144413421 is 124314441144123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 321441144413421 - 2²² = 321441140219117 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 321441144413421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321441144413491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53573524068901 + ... + 53573524068906.

It is an arithmetic number, because the mean of its divisors is an integer number (107147048137808).

Almost surely, 2^{321441144413421} is an apocalyptic number.

It is an amenable number.

321441144413421 is a deficient number, since it is larger than the sum of its proper divisors (107147048137811).

321441144413421 is a wasteful number, since it uses less digits than its factorization.

321441144413421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107147048137810.

The product of its digits is 147456, while the sum is 39.

Adding to 321441144413421 its reverse (124314441144123), we get a palindrome (445755585557544).

The spelling of 321441144413421 in words is "three hundred twenty-one trillion, four hundred forty-one billion, one hundred forty-four million, four hundred thirteen thousand, four hundred twenty-one".