320143021013 has 8 divisors (see below), whose sum is σ = 320479521600. Its totient is φ = 319806699840.

The previous prime is 320143020983. The next prime is 320143021019. The reversal of 320143021013 is 310120341023.

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

It is a cyclic number.

It is not a de Polignac number, because 320143021013 - 2⁶ = 320143020949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320143021019) by changing a digit.

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, 3687008 + ... + 3772838.

It is an arithmetic number, because the mean of its divisors is an integer number (40059940200).

Almost surely, 2^320143021013 is an apocalyptic number.

It is an amenable number.

320143021013 is a deficient number, since it is larger than the sum of its proper divisors (336500587).

320143021013 is a wasteful number, since it uses less digits than its factorization.

320143021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89707.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320143021013 its reverse (310120341023), we get a palindrome (630263362036).

The spelling of 320143021013 in words is "three hundred twenty billion, one hundred forty-three million, twenty-one thousand, thirteen".