213113212311 has 16 divisors (see below), whose sum is σ = 293968015200. Its totient is φ = 137167567488.

The previous prime is 213113212289. The next prime is 213113212357. The reversal of 213113212311 is 113212311312.

It is not a de Polignac number, because 213113212311 - 2¹³ = 213113204119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113212381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467885 + ... + 1606521.

It is an arithmetic number, because the mean of its divisors is an integer number (18373000950).

Almost surely, 2^213113212311 is an apocalyptic number.

213113212311 is a deficient number, since it is larger than the sum of its proper divisors (80854802889).

213113212311 is a wasteful number, since it uses less digits than its factorization.

213113212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156338.

The product of its digits is 216, while the sum is 21.

Adding to 213113212311 its reverse (113212311312), we get a palindrome (326325523623).

Subtracting from 213113212311 its reverse (113212311312), we obtain a palindrome (99900900999).

The spelling of 213113212311 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred twelve thousand, three hundred eleven".