212011311102103 has 4 divisors (see below), whose sum is σ = 212360588386240. Its totient is φ = 211662033817968.

The previous prime is 212011311102091. The next prime is 212011311102127. The reversal of 212011311102103 is 301201113110212.

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 212011311102103 - 2⁹ = 212011311101591 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 (212011311100103) 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, 174638641158 + ... + 174638642371.

It is an arithmetic number, because the mean of its divisors is an integer number (53090147096560).

Almost surely, 2^{212011311102103} is an apocalyptic number.

212011311102103 is a deficient number, since it is larger than the sum of its proper divisors (349277284137).

212011311102103 is an equidigital number, since it uses as much as digits as its factorization.

212011311102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349277284136.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 212011311102103 its reverse (301201113110212), we get a palindrome (513212424212315).

The spelling of 212011311102103 in words is "two hundred twelve trillion, eleven billion, three hundred eleven million, one hundred two thousand, one hundred three".