213223321311 has 128 divisors (see below), whose sum is σ = 405372764160. Its totient is φ = 96003532800.

The previous prime is 213223321291. The next prime is 213223321319. The reversal of 213223321311 is 113123322312.

It is not a de Polignac number, because 213223321311 - 2⁷ = 213223321183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223321319) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6430906 + ... + 6463976.

It is an arithmetic number, because the mean of its divisors is an integer number (3166974720).

Almost surely, 2^213223321311 is an apocalyptic number.

213223321311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213223321311 is a deficient number, since it is larger than the sum of its proper divisors (192149442849).

213223321311 is a wasteful number, since it uses less digits than its factorization.

213223321311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33237.

The product of its digits is 1296, while the sum is 24.

Adding to 213223321311 its reverse (113123322312), we get a palindrome (326346643623).

The spelling of 213223321311 in words is "two hundred thirteen billion, two hundred twenty-three million, three hundred twenty-one thousand, three hundred eleven".