320320200000001 has 4 divisors (see below), whose sum is σ = 322285354601392. Its totient is φ = 318355045398612.

The previous prime is 320320199999983. The next prime is 320320200000029. The reversal of 320320200000001 is 100000002023023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320320200000001 - 2¹³ = 320320199991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320320200000071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982577300451 + ... + 982577300776.

It is an arithmetic number, because the mean of its divisors is an integer number (80571338650348).

Almost surely, 2^{320320200000001} is an apocalyptic number.

It is an amenable number.

320320200000001 is a deficient number, since it is larger than the sum of its proper divisors (1965154601391).

320320200000001 is a wasteful number, since it uses less digits than its factorization.

320320200000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965154601390.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 320320200000001 its reverse (100000002023023), we get a palindrome (420320202023024).

The spelling of 320320200000001 in words is "three hundred twenty trillion, three hundred twenty billion, two hundred million, one", and thus it is an aban number.