213617716311 has 8 divisors (see below), whose sum is σ = 285019652080. Its totient is φ = 142313795712.

The previous prime is 213617716309. The next prime is 213617716327. The reversal of 213617716311 is 113617716312.

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

It is not a de Polignac number, because 213617716311 - 2¹ = 213617716309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213617716311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213617711311) 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, 24498706 + ... + 24507423.

It is an arithmetic number, because the mean of its divisors is an integer number (35627456510).

Almost surely, 2^213617716311 is an apocalyptic number.

213617716311 is a deficient number, since it is larger than the sum of its proper divisors (71401935769).

213617716311 is a wasteful number, since it uses less digits than its factorization.

213617716311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49007585.

The product of its digits is 31752, while the sum is 39.

Subtracting from 213617716311 its reverse (113617716312), we obtain a palindrome (99999999999).

The spelling of 213617716311 in words is "two hundred thirteen billion, six hundred seventeen million, seven hundred sixteen thousand, three hundred eleven".