211243401203 has 4 divisors (see below), whose sum is σ = 215229125808. Its totient is φ = 207257676600.

The previous prime is 211243401179. The next prime is 211243401209. The reversal of 211243401203 is 302104342112.

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

It is not a de Polignac number, because 211243401203 - 2⁸ = 211243400947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211243401209) 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, 1992862223 + ... + 1992862328.

It is an arithmetic number, because the mean of its divisors is an integer number (53807281452).

Almost surely, 2^211243401203 is an apocalyptic number.

211243401203 is a deficient number, since it is larger than the sum of its proper divisors (3985724605).

211243401203 is an equidigital number, since it uses as much as digits as its factorization.

211243401203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985724604.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211243401203 its reverse (302104342112), we get a palindrome (513347743315).

The spelling of 211243401203 in words is "two hundred eleven billion, two hundred forty-three million, four hundred one thousand, two hundred three".