212030121103 has 4 divisors (see below), whose sum is σ = 213453142200. Its totient is φ = 210607100008.

The previous prime is 212030121059. The next prime is 212030121113. The reversal of 212030121103 is 301121030212.

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 212030121103 - 2¹⁷ = 212029990031 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 (212030121113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711510325 + ... + 711510622.

It is an arithmetic number, because the mean of its divisors is an integer number (53363285550).

Almost surely, 2^212030121103 is an apocalyptic number.

212030121103 is a deficient number, since it is larger than the sum of its proper divisors (1423021097).

212030121103 is a wasteful number, since it uses less digits than its factorization.

212030121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423021096.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212030121103 its reverse (301121030212), we get a palindrome (513151151315).

The spelling of 212030121103 in words is "two hundred twelve billion, thirty million, one hundred twenty-one thousand, one hundred three".