320213112021 has 96 divisors (see below), whose sum is σ = 567622598400. Its totient is φ = 171587082240.

The previous prime is 320213112007. The next prime is 320213112041. The reversal of 320213112021 is 120211312023.

320213112021 is a `hidden beast` number, since 320 + 213 + 112 + 0 + 21 = 666.

It is not a de Polignac number, because 320213112021 - 2⁹ = 320213111509 is a prime.

It is a super-2 number, since 2×320213112021² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320213111985 and 320213112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320213112041) 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 95 ways as a sum of consecutive naturals, for example, 1717200 + ... + 1894518.

It is an arithmetic number, because the mean of its divisors is an integer number (5912735400).

Almost surely, 2^320213112021 is an apocalyptic number.

It is an amenable number.

320213112021 is a deficient number, since it is larger than the sum of its proper divisors (247409486379).

320213112021 is a wasteful number, since it uses less digits than its factorization.

320213112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177419 (or 177416 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 320213112021 its reverse (120211312023), we get a palindrome (440424424044).

It can be divided in two parts, 320213 and 112021, that added together give a palindrome (432234).

The spelling of 320213112021 in words is "three hundred twenty billion, two hundred thirteen million, one hundred twelve thousand, twenty-one".