212311110012203 has 4 divisors (see below), whose sum is σ = 212505356225568. Its totient is φ = 212116863798840.

The previous prime is 212311110012181. The next prime is 212311110012289. The reversal of 212311110012203 is 302210011113212.

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 212311110012203 - 2²⁸ = 212310841576747 is a prime.

It is a super-2 number, since 2×212311110012203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212311110012103) 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, 97123105043 + ... + 97123107228.

It is an arithmetic number, because the mean of its divisors is an integer number (53126339056392).

Almost surely, 2^{212311110012203} is an apocalyptic number.

212311110012203 is a deficient number, since it is larger than the sum of its proper divisors (194246213365).

212311110012203 is a wasteful number, since it uses less digits than its factorization.

212311110012203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194246213364.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 212311110012203 its reverse (302210011113212), we get a palindrome (514521121125415).

The spelling of 212311110012203 in words is "two hundred twelve trillion, three hundred eleven billion, one hundred ten million, twelve thousand, two hundred three".