320143420344 has 32 divisors (see below), whose sum is σ = 873118419840. Its totient is φ = 97013157600.

The previous prime is 320143420313. The next prime is 320143420391. The reversal of 320143420344 is 443024341023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606331972 + ... + 606332499.

It is an arithmetic number, because the mean of its divisors is an integer number (27284950620).

Almost surely, 2^320143420344 is an apocalyptic number.

It is an amenable number.

320143420344 is an abundant number, since it is smaller than the sum of its proper divisors (552974999496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320143420344 is a wasteful number, since it uses less digits than its factorization.

320143420344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212664491 (or 1212664487 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 320143420344 its reverse (443024341023), we get a palindrome (763167761367).

The spelling of 320143420344 in words is "three hundred twenty billion, one hundred forty-three million, four hundred twenty thousand, three hundred forty-four".