320022021013 has 4 divisors (see below), whose sum is σ = 320227296480. Its totient is φ = 319816745548.

The previous prime is 320022021001. The next prime is 320022021017. The reversal of 320022021013 is 310120220023.

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 320022021013 - 2³³ = 311432086421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320022021017) 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, 102635395 + ... + 102638512.

It is an arithmetic number, because the mean of its divisors is an integer number (80056824120).

Almost surely, 2^320022021013 is an apocalyptic number.

It is an amenable number.

320022021013 is a deficient number, since it is larger than the sum of its proper divisors (205275467).

320022021013 is a wasteful number, since it uses less digits than its factorization.

320022021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205275466.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 320022021013 its reverse (310120220023), we get a palindrome (630142241036).

The spelling of 320022021013 in words is "three hundred twenty billion, twenty-two million, twenty-one thousand, thirteen".