11121216103 has 2 divisors, whose sum is σ = 11121216104. Its totient is φ = 11121216102.

The previous prime is 11121216101. The next prime is 11121216143. The reversal of 11121216103 is 30161212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11121216103 - 2¹ = 11121216101 is a prime.

Together with 11121216101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121216101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560608051 + 5560608052.

It is an arithmetic number, because the mean of its divisors is an integer number (5560608052).

Almost surely, 2^11121216103 is an apocalyptic number.

11121216103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121216103 is an equidigital number, since it uses as much as digits as its factorization.

11121216103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11121216103 its reverse (30161212111), we get a palindrome (41282428214).

The spelling of 11121216103 in words is "eleven billion, one hundred twenty-one million, two hundred sixteen thousand, one hundred three".