211001110121103 has 4 divisors (see below), whose sum is σ = 281334813494808. Its totient is φ = 140667406747400.

The previous prime is 211001110121093. The next prime is 211001110121117. The reversal of 211001110121103 is 301121011100112.

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 211001110121103 - 2²⁵ = 211001076566671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001110121173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35166851686848 + ... + 35166851686853.

It is an arithmetic number, because the mean of its divisors is an integer number (70333703373702).

Almost surely, 2^{211001110121103} is an apocalyptic number.

211001110121103 is a deficient number, since it is larger than the sum of its proper divisors (70333703373705).

211001110121103 is an equidigital number, since it uses as much as digits as its factorization.

211001110121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70333703373704.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 211001110121103 its reverse (301121011100112), we get a palindrome (512122121221215).

The spelling of 211001110121103 in words is "two hundred eleven trillion, one billion, one hundred ten million, one hundred twenty-one thousand, one hundred three".