11211103103 has 2 divisors, whose sum is σ = 11211103104. Its totient is φ = 11211103102.

The previous prime is 11211103051. The next prime is 11211103129. The reversal of 11211103103 is 30130111211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11211103103 - 2³⁰ = 10137361279 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 (11211103703) 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 as a sum of consecutive naturals, namely, 5605551551 + 5605551552.

It is an arithmetic number, because the mean of its divisors is an integer number (5605551552).

Almost surely, 2^11211103103 is an apocalyptic number.

11211103103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211103103 is an equidigital number, since it uses as much as digits as its factorization.

11211103103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11211103103 its reverse (30130111211), we get a palindrome (41341214314).

The spelling of 11211103103 in words is "eleven billion, two hundred eleven million, one hundred three thousand, one hundred three".