213201344323 has 4 divisors (see below), whose sum is σ = 232583284728. Its totient is φ = 193819403920.

The previous prime is 213201344309. The next prime is 213201344327. The reversal of 213201344323 is 323443102312.

It is a happy number.

213201344323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213201344323 is a prime.

It is a super-2 number, since 2×213201344323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213201344291 and 213201344300.

It is not an unprimeable number, because it can be changed into a prime (213201344327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9690970186 + ... + 9690970207.

It is an arithmetic number, because the mean of its divisors is an integer number (58145821182).

Almost surely, 2^213201344323 is an apocalyptic number.

213201344323 is a deficient number, since it is larger than the sum of its proper divisors (19381940405).

213201344323 is a wasteful number, since it uses less digits than its factorization.

213201344323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19381940404.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213201344323 its reverse (323443102312), we get a palindrome (536644446635).

The spelling of 213201344323 in words is "two hundred thirteen billion, two hundred one million, three hundred forty-four thousand, three hundred twenty-three".