213111223233 has 16 divisors (see below), whose sum is σ = 293749209600. Its totient is φ = 137337275520.

The previous prime is 213111223181. The next prime is 213111223289. The reversal of 213111223233 is 332322111312.

It is not a de Polignac number, because 213111223233 - 2²⁰ = 213110174657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213111224233) 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, 7934353 + ... + 7961166.

It is an arithmetic number, because the mean of its divisors is an integer number (18359325600).

Almost surely, 2^213111223233 is an apocalyptic number.

It is an amenable number.

213111223233 is a deficient number, since it is larger than the sum of its proper divisors (80637986367).

213111223233 is a wasteful number, since it uses less digits than its factorization.

213111223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895672.

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

Adding to 213111223233 its reverse (332322111312), we get a palindrome (545433334545).

The spelling of 213111223233 in words is "two hundred thirteen billion, one hundred eleven million, two hundred twenty-three thousand, two hundred thirty-three".