213310444323 has 4 divisors (see below), whose sum is σ = 284413925768. Its totient is φ = 142206962880.

The previous prime is 213310444309. The next prime is 213310444343. The reversal of 213310444323 is 323444013312.

It is a happy number.

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

It is not a de Polignac number, because 213310444323 - 2²² = 213306250019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213310444343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35551740718 + ... + 35551740723.

It is an arithmetic number, because the mean of its divisors is an integer number (71103481442).

Almost surely, 2^213310444323 is an apocalyptic number.

213310444323 is a deficient number, since it is larger than the sum of its proper divisors (71103481445).

213310444323 is an equidigital number, since it uses as much as digits as its factorization.

213310444323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71103481444.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 213310444323 its reverse (323444013312), we get a palindrome (536754457635).

The spelling of 213310444323 in words is "two hundred thirteen billion, three hundred ten million, four hundred forty-four thousand, three hundred twenty-three".