213123312200323 has 24 divisors (see below), whose sum is σ = 250813056255840. Its totient is φ = 180546405621120.

The previous prime is 213123312200209. The next prime is 213123312200341. The reversal of 213123312200323 is 323002213321312.

It is a happy number.

It is not a de Polignac number, because 213123312200323 - 2⁴¹ = 210924288944771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213123312200291 and 213123312200300.

It is not an unprimeable number, because it can be changed into a prime (213123312200923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495136 + ... + 20651677.

It is an arithmetic number, because the mean of its divisors is an integer number (10450544010660).

Almost surely, 2^{213123312200323} is an apocalyptic number.

213123312200323 is a deficient number, since it is larger than the sum of its proper divisors (37689744055517).

213123312200323 is a wasteful number, since it uses less digits than its factorization.

213123312200323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21149227 (or 21149220 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 213123312200323 its reverse (323002213321312), we get a palindrome (536125525521635).

The spelling of 213123312200323 in words is "two hundred thirteen trillion, one hundred twenty-three billion, three hundred twelve million, two hundred thousand, three hundred twenty-three".