213213013211320 has 64 divisors (see below), whose sum is σ = 480488049699840. Its totient is φ = 85150413388800.

The previous prime is 213213013211309. The next prime is 213213013211323. The reversal of 213213013211320 is 23112310312312.

It is a super-2 number, since 2×213213013211320² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213213013211323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66347260 + ... + 69486580.

It is an arithmetic number, because the mean of its divisors is an integer number (7507625776560).

Almost surely, 2^{213213013211320} is an apocalyptic number.

213213013211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213213013211320 is an abundant number, since it is smaller than the sum of its proper divisors (267275036488520).

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

213213013211320 is a wasteful number, since it uses less digits than its factorization.

213213013211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142016 (or 3142012 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 213213013211320 its reverse (23112310312312), we get a palindrome (236325323523632).

The spelling of 213213013211320 in words is "two hundred thirteen trillion, two hundred thirteen billion, thirteen million, two hundred eleven thousand, three hundred twenty".