213113223 has 6 divisors (see below), whose sum is σ = 307830224. Its totient is φ = 142075476.

The previous prime is 213113179. The next prime is 213113231. The reversal of 213113223 is 322311312.

It is not a de Polignac number, because 213113223 - 2¹⁶ = 213047687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213113196 and 213113205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11839615 + ... + 11839632.

Almost surely, 2^213113223 is an apocalyptic number.

213113223 is a deficient number, since it is larger than the sum of its proper divisors (94717001).

213113223 is a wasteful number, since it uses less digits than its factorization.

213113223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23679253 (or 23679250 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 213113223 is about 14598.3979600503. The cubic root of 213113223 is about 597.3150614298.

Adding to 213113223 its reverse (322311312), we get a palindrome (535424535).

The spelling of 213113223 in words is "two hundred thirteen million, one hundred thirteen thousand, two hundred twenty-three".