213201210320 has 160 divisors (see below), whose sum is σ = 605556241920. Its totient is φ = 68213882880.

The previous prime is 213201210311. The next prime is 213201210353. The reversal of 213201210320 is 23012102312.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 326216 + ... + 729944.

It is an arithmetic number, because the mean of its divisors is an integer number (3784726512).

Almost surely, 2^213201210320 is an apocalyptic number.

213201210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213201210320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302778120960).

213201210320 is an abundant number, since it is smaller than the sum of its proper divisors (392355031600).

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

213201210320 is a wasteful number, since it uses less digits than its factorization.

213201210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403813 (or 403807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213201210320 its reverse (23012102312), we get a palindrome (236213312632).

The spelling of 213201210320 in words is "two hundred thirteen billion, two hundred one million, two hundred ten thousand, three hundred twenty".