11211001103 has 2 divisors, whose sum is σ = 11211001104. Its totient is φ = 11211001102.

The previous prime is 11211001099. The next prime is 11211001117. The reversal of 11211001103 is 30110011211.

It is a happy number.

11211001103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211001103 - 2² = 11211001099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211001183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605500551 + 5605500552.

It is an arithmetic number, because the mean of its divisors is an integer number (5605500552).

Almost surely, 2^11211001103 is an apocalyptic number.

11211001103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211001103 is an equidigital number, since it uses as much as digits as its factorization.

11211001103 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11211001103 its reverse (30110011211), we get a palindrome (41321012314).

The spelling of 11211001103 in words is "eleven billion, two hundred eleven million, one thousand, one hundred three".