211142203 has 4 divisors (see below), whose sum is σ = 211189680. Its totient is φ = 211094728.

The previous prime is 211142161. The next prime is 211142249. The reversal of 211142203 is 302241112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211142203 - 2²¹ = 209045051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211142803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16288 + ... + 26221.

It is an arithmetic number, because the mean of its divisors is an integer number (52797420).

Almost surely, 2^211142203 is an apocalyptic number.

211142203 is a deficient number, since it is larger than the sum of its proper divisors (47477).

211142203 is an equidigital number, since it uses as much as digits as its factorization.

211142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47476.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 211142203 is about 14530.7330510198. The cubic root of 211142203 is about 595.4678926808.

Adding to 211142203 its reverse (302241112), we get a palindrome (513383315).

The spelling of 211142203 in words is "two hundred eleven million, one hundred forty-two thousand, two hundred three".