211233123203 has 4 divisors (see below), whose sum is σ = 211234808928. Its totient is φ = 211231437480.

The previous prime is 211233123197. The next prime is 211233123341. The reversal of 211233123203 is 302321332112.

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 211233123203 - 2³⁴ = 194053254019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211233153203) 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, 638363 + ... + 911028.

It is an arithmetic number, because the mean of its divisors is an integer number (52808702232).

Almost surely, 2^211233123203 is an apocalyptic number.

211233123203 is a deficient number, since it is larger than the sum of its proper divisors (1685725).

211233123203 is a wasteful number, since it uses less digits than its factorization.

211233123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685724.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 211233123203 its reverse (302321332112), we get a palindrome (513554455315).

The spelling of 211233123203 in words is "two hundred eleven billion, two hundred thirty-three million, one hundred twenty-three thousand, two hundred three".