211143213 has 32 divisors (see below), whose sum is σ = 333244800. Its totient is φ = 131666688.

The previous prime is 211143199. The next prime is 211143217. The reversal of 211143213 is 312341112.

211143213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211143213 - 2²² = 206948909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211143217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78078 + ... + 80736.

It is an arithmetic number, because the mean of its divisors is an integer number (10413900).

Almost surely, 2^211143213 is an apocalyptic number.

It is an amenable number.

211143213 is a deficient number, since it is larger than the sum of its proper divisors (122101587).

211143213 is a wasteful number, since it uses less digits than its factorization.

211143213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2852 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 211143213 is about 14530.7678049028. The cubic root of 211143213 is about 595.4688421541.

Adding to 211143213 its reverse (312341112), we get a palindrome (523484325).

The spelling of 211143213 in words is "two hundred eleven million, one hundred forty-three thousand, two hundred thirteen".