211031343 has 12 divisors (see below), whose sum is σ = 305302608. Its totient is φ = 140466240.

The previous prime is 211031323. The next prime is 211031407. The reversal of 211031343 is 343130112.

It is not a de Polignac number, because 211031343 - 2⁸ = 211031087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12298 + ... + 23943.

It is an arithmetic number, because the mean of its divisors is an integer number (25441884).

Almost surely, 2^211031343 is an apocalyptic number.

211031343 is a deficient number, since it is larger than the sum of its proper divisors (94271265).

211031343 is a wasteful number, since it uses less digits than its factorization.

211031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36894 (or 36891 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 211031343 is about 14526.9178768244. The cubic root of 211031343 is about 595.3636578311.

Adding to 211031343 its reverse (343130112), we get a palindrome (554161455).

The spelling of 211031343 in words is "two hundred eleven million, thirty-one thousand, three hundred forty-three".