212103331103 has 4 divisors (see below), whose sum is σ = 221325215088. Its totient is φ = 202881447120.

The previous prime is 212103331093. The next prime is 212103331133. The reversal of 212103331103 is 301133301212.

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-212103331103 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 (212103331133) 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, 4610941958 + ... + 4610942003.

It is an arithmetic number, because the mean of its divisors is an integer number (55331303772).

Almost surely, 2^212103331103 is an apocalyptic number.

212103331103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212103331103 is a deficient number, since it is larger than the sum of its proper divisors (9221883985).

212103331103 is an equidigital number, since it uses as much as digits as its factorization.

212103331103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221883984.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 212103331103 its reverse (301133301212), we get a palindrome (513236632315).

The spelling of 212103331103 in words is "two hundred twelve billion, one hundred three million, three hundred thirty-one thousand, one hundred three".