211223132111203 has 4 divisors (see below), whose sum is σ = 213596425730520. Its totient is φ = 208849838491888.

The previous prime is 211223132111177. The next prime is 211223132111219. The reversal of 211223132111203 is 302111231322112.

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 211223132111203 - 2³³ = 211214542176611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211223132111903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186646809525 + ... + 1186646809702.

It is an arithmetic number, because the mean of its divisors is an integer number (53399106432630).

Almost surely, 2^{211223132111203} is an apocalyptic number.

211223132111203 is a deficient number, since it is larger than the sum of its proper divisors (2373293619317).

211223132111203 is an equidigital number, since it uses as much as digits as its factorization.

211223132111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373293619316.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 211223132111203 its reverse (302111231322112), we get a palindrome (513334363433315).

The spelling of 211223132111203 in words is "two hundred eleven trillion, two hundred twenty-three billion, one hundred thirty-two million, one hundred eleven thousand, two hundred three".