321243332432441 has 4 divisors (see below), whose sum is σ = 340139999046132. Its totient is φ = 302346665818752.

The previous prime is 321243332432437. The next prime is 321243332432447. The reversal of 321243332432441 is 144234233342123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208414408999225 + 112828923433216 = 14436565^2 + 10622096^2 .

It is a cyclic number.

It is not a de Polignac number, because 321243332432441 - 2² = 321243332432437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321243332432447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9448333306820 + ... + 9448333306853.

It is an arithmetic number, because the mean of its divisors is an integer number (85034999761533).

Almost surely, 2^{321243332432441} is an apocalyptic number.

It is an amenable number.

321243332432441 is a deficient number, since it is larger than the sum of its proper divisors (18896666613691).

321243332432441 is a wasteful number, since it uses less digits than its factorization.

321243332432441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896666613690.

The product of its digits is 995328, while the sum is 41.

Adding to 321243332432441 its reverse (144234233342123), we get a palindrome (465477565774564).

The spelling of 321243332432441 in words is "three hundred twenty-one trillion, two hundred forty-three billion, three hundred thirty-two million, four hundred thirty-two thousand, four hundred forty-one".