2101000111103 has 2 divisors, whose sum is σ = 2101000111104. Its totient is φ = 2101000111102.

The previous prime is 2101000111079. The next prime is 2101000111139. The reversal of 2101000111103 is 3011110001012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101000111103 - 2¹² = 2101000107007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101000111003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050500055551 + 1050500055552.

It is an arithmetic number, because the mean of its divisors is an integer number (1050500055552).

Almost surely, 2^{2101000111103} is an apocalyptic number.

2101000111103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101000111103 is an equidigital number, since it uses as much as digits as its factorization.

2101000111103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 2101000111103 its reverse (3011110001012), we get a palindrome (5112110112115).

The spelling of 2101000111103 in words is "two trillion, one hundred one billion, one hundred eleven thousand, one hundred three".