213243103242303 has 8 divisors (see below), whose sum is σ = 286562910394368. Its totient is φ = 141042682459224.

The previous prime is 213243103242289. The next prime is 213243103242331. The reversal of 213243103242303 is 303242301342312.

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

It is not a de Polignac number, because 213243103242303 - 2²⁰ = 213243102193727 is a prime.

It is a super-2 number, since 2×213243103242303² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213243103242343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279846591801 + ... + 279846592562.

It is an arithmetic number, because the mean of its divisors is an integer number (35820363799296).

Almost surely, 2^{213243103242303} is an apocalyptic number.

213243103242303 is a deficient number, since it is larger than the sum of its proper divisors (73319807152065).

213243103242303 is a wasteful number, since it uses less digits than its factorization.

213243103242303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559693184493.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 213243103242303 its reverse (303242301342312), we get a palindrome (516485404584615).

The spelling of 213243103242303 in words is "two hundred thirteen trillion, two hundred forty-three billion, one hundred three million, two hundred forty-two thousand, three hundred three".