213311121103 has 4 divisors (see below), whose sum is σ = 213321450168. Its totient is φ = 213300792040.

The previous prime is 213311121097. The next prime is 213311121113. The reversal of 213311121103 is 301121113312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213311121103 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 (213311121113) 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, 5133493 + ... + 5174878.

It is an arithmetic number, because the mean of its divisors is an integer number (53330362542).

Almost surely, 2^213311121103 is an apocalyptic number.

213311121103 is a deficient number, since it is larger than the sum of its proper divisors (10329065).

213311121103 is a wasteful number, since it uses less digits than its factorization.

213311121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329064.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 213311121103 its reverse (301121113312), we get a palindrome (514432234415).

The spelling of 213311121103 in words is "two hundred thirteen billion, three hundred eleven million, one hundred twenty-one thousand, one hundred three".