213223023210320 has 40 divisors (see below), whose sum is σ = 496347358019400. Its totient is φ = 85185324715520.

The previous prime is 213223023210289. The next prime is 213223023210359. The reversal of 213223023210320 is 23012320322312.

It can be written as a sum of positive squares in 4 ways, for example, as 1204146296896 + 212018876913424 = 1097336^2 + 14560868^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×213223023210320² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213223023210320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623130295 + ... + 1623261654.

It is an arithmetic number, because the mean of its divisors is an integer number (12408683950485).

Almost surely, 2^{213223023210320} is an apocalyptic number.

213223023210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213223023210320 is an abundant number, since it is smaller than the sum of its proper divisors (283124334809080).

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

213223023210320 is a wasteful number, since it uses less digits than its factorization.

213223023210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246392783 (or 3246392777 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 213223023210320 its reverse (23012320322312), we get a palindrome (236235343532632).

The spelling of 213223023210320 in words is "two hundred thirteen trillion, two hundred twenty-three billion, twenty-three million, two hundred ten thousand, three hundred twenty".