321244340322421 has 8 divisors (see below), whose sum is σ = 325992487759064. Its totient is φ = 316505585859840.

The previous prime is 321244340322413. The next prime is 321244340322473. The reversal of 321244340322421 is 124223043442123.

It can be written as a sum of positive squares in 4 ways, for example, as 6040712021796 + 315203628300625 = 2457786^2 + 17753975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321244340322421 - 2³ = 321244340322413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321244340329421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2348174610 + ... + 2348311411.

It is an arithmetic number, because the mean of its divisors is an integer number (40749060969883).

Almost surely, 2^{321244340322421} is an apocalyptic number.

It is an amenable number.

321244340322421 is a deficient number, since it is larger than the sum of its proper divisors (4748147436643).

321244340322421 is an equidigital number, since it uses as much as digits as its factorization.

321244340322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696487031.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 321244340322421 its reverse (124223043442123), we get a palindrome (445467383764544).

The spelling of 321244340322421 in words is "three hundred twenty-one trillion, two hundred forty-four billion, three hundred forty million, three hundred twenty-two thousand, four hundred twenty-one".