320034444432421 has 4 divisors (see below), whose sum is σ = 321044016812652. Its totient is φ = 319024872052192.

The previous prime is 320034444432407. The next prime is 320034444432457. The reversal of 320034444432421 is 124234444430023.

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 192186512028225 + 127847932404196 = 13863135^2 + 11306986^2 .

It is a cyclic number.

It is not a de Polignac number, because 320034444432421 - 2⁵ = 320034444432389 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 (320034444432481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504786189640 + ... + 504786190273.

It is an arithmetic number, because the mean of its divisors is an integer number (80261004203163).

Almost surely, 2^{320034444432421} is an apocalyptic number.

It is an amenable number.

320034444432421 is a deficient number, since it is larger than the sum of its proper divisors (1009572380231).

320034444432421 is a wasteful number, since it uses less digits than its factorization.

320034444432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009572380230.

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 320034444432421 its reverse (124234444430023), we get a palindrome (444268888862444).

The spelling of 320034444432421 in words is "three hundred twenty trillion, thirty-four billion, four hundred forty-four million, four hundred thirty-two thousand, four hundred twenty-one".