213212133311 has 4 divisors (see below), whose sum is σ = 213229098432. Its totient is φ = 213195168192.

The previous prime is 213212133271. The next prime is 213212133331. The reversal of 213212133311 is 113331212312.

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

It is a cyclic number.

It is not a de Polignac number, because 213212133311 - 2¹⁸ = 213211871167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212133331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8463695 + ... + 8488848.

It is an arithmetic number, because the mean of its divisors is an integer number (53307274608).

Almost surely, 2^213212133311 is an apocalyptic number.

213212133311 is a deficient number, since it is larger than the sum of its proper divisors (16965121).

213212133311 is a wasteful number, since it uses less digits than its factorization.

213212133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16965120.

The product of its digits is 648, while the sum is 23.

Adding to 213212133311 its reverse (113331212312), we get a palindrome (326543345623).

The spelling of 213212133311 in words is "two hundred thirteen billion, two hundred twelve million, one hundred thirty-three thousand, three hundred eleven".