213243312003 has 8 divisors (see below), whose sum is σ = 284538682368. Its totient is φ = 142055074824.

The previous prime is 213243311999. The next prime is 213243312017. The reversal of 213243312003 is 300213342312.

213243312003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 213243312003 - 2² = 213243311999 is a prime.

It is a super-2 number, since 2×213243312003² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213243312043) 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 7 ways as a sum of consecutive naturals, for example, 26778651 + ... + 26786612.

It is an arithmetic number, because the mean of its divisors is an integer number (35567335296).

Almost surely, 2^213243312003 is an apocalyptic number.

213243312003 is a deficient number, since it is larger than the sum of its proper divisors (71295370365).

213243312003 is a wasteful number, since it uses less digits than its factorization.

213243312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53566593.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 213243312003 its reverse (300213342312), we get a palindrome (513456654315).

The spelling of 213243312003 in words is "two hundred thirteen billion, two hundred forty-three million, three hundred twelve thousand, three".