212011321103 has 4 divisors (see below), whose sum is σ = 212013151008. Its totient is φ = 212009491200.

The previous prime is 212011321073. The next prime is 212011321127. The reversal of 212011321103 is 301123110212.

212011321103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212011321103 - 2⁸ = 212011320847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011321133) 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, 728498 + ... + 977103.

It is an arithmetic number, because the mean of its divisors is an integer number (53003287752).

Almost surely, 2^212011321103 is an apocalyptic number.

212011321103 is a deficient number, since it is larger than the sum of its proper divisors (1829905).

212011321103 is a wasteful number, since it uses less digits than its factorization.

212011321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829904.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212011321103 its reverse (301123110212), we get a palindrome (513134431315).

The spelling of 212011321103 in words is "two hundred twelve billion, eleven million, three hundred twenty-one thousand, one hundred three".