211343103 has 12 divisors (see below), whose sum is σ = 309456160. Its totient is φ = 138964896.

The previous prime is 211343081. The next prime is 211343107. The reversal of 211343103 is 301343112.

It is not a de Polignac number, because 211343103 - 2⁵ = 211343071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211343107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160183 + ... + 161496.

Almost surely, 2^211343103 is an apocalyptic number.

211343103 is a deficient number, since it is larger than the sum of its proper divisors (98113057).

211343103 is a wasteful number, since it uses less digits than its factorization.

211343103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321758 (or 321755 counting only the distinct ones).

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

The square root of 211343103 is about 14537.6443415018. The cubic root of 211343103 is about 595.6566936814.

Adding to 211343103 its reverse (301343112), we get a palindrome (512686215).

Subtracting 211343103 from its reverse (301343112), we obtain a palindrome (90000009).

The spelling of 211343103 in words is "two hundred eleven million, three hundred forty-three thousand, one hundred three".