320143319999 has 8 divisors (see below), whose sum is σ = 337662944640. Its totient is φ = 302690693016.

The previous prime is 320143319933. The next prime is 320143320043. The reversal of 320143319999 is 999913341023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320143319999 is a prime.

It is a super-2 number, since 2×320143319999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320143319999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320143319929) 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, 16739597 + ... + 16758710.

It is an arithmetic number, because the mean of its divisors is an integer number (42207868080).

Almost surely, 2^320143319999 is an apocalyptic number.

320143319999 is a deficient number, since it is larger than the sum of its proper divisors (17519624641).

320143319999 is a wasteful number, since it uses less digits than its factorization.

320143319999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33498829.

The product of its (nonzero) digits is 1417176, while the sum is 53.

The spelling of 320143319999 in words is "three hundred twenty billion, one hundred forty-three million, three hundred nineteen thousand, nine hundred ninety-nine".