211111300101103 has 4 divisors (see below), whose sum is σ = 211117257505960. Its totient is φ = 211105342696248.

The previous prime is 211111300101089. The next prime is 211111300101139. The reversal of 211111300101103 is 301101003111112.

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 211111300101103 - 2²¹ = 211111298003951 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 (211111300101503) 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, 2978649273 + ... + 2978720146.

It is an arithmetic number, because the mean of its divisors is an integer number (52779314376490).

Almost surely, 2^{211111300101103} is an apocalyptic number.

211111300101103 is a deficient number, since it is larger than the sum of its proper divisors (5957404857).

211111300101103 is an equidigital number, since it uses as much as digits as its factorization.

211111300101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957404856.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 211111300101103 its reverse (301101003111112), we get a palindrome (512212303212215).

The spelling of 211111300101103 in words is "two hundred eleven trillion, one hundred eleven billion, three hundred million, one hundred one thousand, one hundred three".