21313200010320 has 160 divisors (see below), whose sum is σ = 73414744012800. Its totient is φ = 5683317889536.

The previous prime is 21313200010241. The next prime is 21313200010343. The reversal of 21313200010320 is 2301000231312.

21313200010320 is a `hidden beast` number, since 2 + 1 + 313 + 20 + 0 + 0 + 10 + 320 = 666.

21313200010320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21313200010293 and 21313200010302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66430609 + ... + 66750671.

It is an arithmetic number, because the mean of its divisors is an integer number (458842150080).

Almost surely, 2^{21313200010320} is an apocalyptic number.

21313200010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21313200010320 is an abundant number, since it is smaller than the sum of its proper divisors (52101544002480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21313200010320 is a wasteful number, since it uses less digits than its factorization.

21313200010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350914 (or 350902 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21313200010320 its reverse (2301000231312), we get a palindrome (23614200241632).

The spelling of 21313200010320 in words is "twenty-one trillion, three hundred thirteen billion, two hundred million, ten thousand, three hundred twenty".