211043253 has 16 divisors (see below), whose sum is σ = 299039040. Its totient is φ = 131932416.

The previous prime is 211043251. The next prime is 211043263. The reversal of 211043253 is 352340112.

It is not a de Polignac number, because 211043253 - 2¹ = 211043251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211043251) 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 15 ways as a sum of consecutive naturals, for example, 6658 + ... + 21596.

It is an arithmetic number, because the mean of its divisors is an integer number (18689940).

Almost surely, 2^211043253 is an apocalyptic number.

It is an amenable number.

211043253 is a deficient number, since it is larger than the sum of its proper divisors (87995787).

211043253 is a wasteful number, since it uses less digits than its factorization.

211043253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15236.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 211043253 is about 14527.3277997022. The cubic root of 211043253 is about 595.3748578227.

Adding to 211043253 its reverse (352340112), we get a palindrome (563383365).

It can be divided in two parts, 2110432 and 53, that added together give a triangular number (2110485 = T₂₀₅₄).

The spelling of 211043253 in words is "two hundred eleven million, forty-three thousand, two hundred fifty-three".