211120203 has 16 divisors (see below), whose sum is σ = 332801280. Its totient is φ = 116479776.

The previous prime is 211120201. The next prime is 211120213. The reversal of 211120203 is 302021112.

It is not a de Polignac number, because 211120203 - 2¹ = 211120201 is a prime.

It is a super-2 number, since 2×211120203² = 89143480229522418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211120201) 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, 172725 + ... + 173942.

It is an arithmetic number, because the mean of its divisors is an integer number (20800080).

Almost surely, 2^211120203 is an apocalyptic number.

211120203 is a deficient number, since it is larger than the sum of its proper divisors (121681077).

211120203 is a wasteful number, since it uses less digits than its factorization.

211120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346706.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211120203 is about 14529.9760151213. The cubic root of 211120203 is about 595.4472103343.

Adding to 211120203 its reverse (302021112), we get a palindrome (513141315).

Subtracting 211120203 from its reverse (302021112), we obtain a palindrome (90900909).

The spelling of 211120203 in words is "two hundred eleven million, one hundred twenty thousand, two hundred three".