320444434010431 has 4 divisors (see below), whose sum is σ = 327262400691552. Its totient is φ = 313626467329312.

The previous prime is 320444434010417. The next prime is 320444434010443. The reversal of 320444434010431 is 134010434444023.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 320444434010431 - 2⁹ = 320444434009919 is a prime.

It is a super-2 number, since 2×320444434010431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320444434040431) 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, 3408983340490 + ... + 3408983340583.

It is an arithmetic number, because the mean of its divisors is an integer number (81815600172888).

Almost surely, 2^{320444434010431} is an apocalyptic number.

320444434010431 is a deficient number, since it is larger than the sum of its proper divisors (6817966681121).

320444434010431 is an equidigital number, since it uses as much as digits as its factorization.

320444434010431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817966681120.

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

Adding to 320444434010431 its reverse (134010434444023), we get a palindrome (454454868454454).

The spelling of 320444434010431 in words is "three hundred twenty trillion, four hundred forty-four billion, four hundred thirty-four million, ten thousand, four hundred thirty-one".