213221011323 has 8 divisors (see below), whose sum is σ = 285737802768. Its totient is φ = 141425780384.

The previous prime is 213221011313. The next prime is 213221011337. The reversal of 213221011323 is 323110122312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213221011323 - 2⁴ = 213221011307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213221011323.

It is not an unprimeable number, because it can be changed into a prime (213221011313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180389436 + ... + 180390617.

It is an arithmetic number, because the mean of its divisors is an integer number (35717225346).

Almost surely, 2^213221011323 is an apocalyptic number.

213221011323 is a deficient number, since it is larger than the sum of its proper divisors (72516791445).

213221011323 is a wasteful number, since it uses less digits than its factorization.

213221011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360780253.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213221011323 its reverse (323110122312), we get a palindrome (536331133635).

The spelling of 213221011323 in words is "two hundred thirteen billion, two hundred twenty-one million, eleven thousand, three hundred twenty-three".