213022323 has 12 divisors (see below), whose sum is σ = 307940880. Its totient is φ = 141903216.

The previous prime is 213022321. The next prime is 213022331. The reversal of 213022323 is 323220312.

It is a happy number.

It is not a de Polignac number, because 213022323 - 2¹ = 213022321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213022296 and 213022305.

It is not an unprimeable number, because it can be changed into a prime (213022321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3738 + ... + 20976.

It is an arithmetic number, because the mean of its divisors is an integer number (25661740).

Almost surely, 2^213022323 is an apocalyptic number.

213022323 is a deficient number, since it is larger than the sum of its proper divisors (94918557).

213022323 is a wasteful number, since it uses less digits than its factorization.

213022323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18618 (or 18615 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213022323 is about 14595.2842726683. The cubic root of 213022323 is about 597.2301243248.

Adding to 213022323 its reverse (323220312), we get a palindrome (536242635).

The spelling of 213022323 in words is "two hundred thirteen million, twenty-two thousand, three hundred twenty-three".