11111210012103 has 16 divisors (see below), whose sum is σ = 14921961600000. Its totient is φ = 7353968973120.

The previous prime is 11111210012087. The next prime is 11111210012153. The reversal of 11111210012103 is 30121001211111.

It is not a de Polignac number, because 11111210012103 - 2⁴ = 11111210012087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111210012153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14723523 + ... + 15459771.

It is an arithmetic number, because the mean of its divisors is an integer number (932622600000).

Almost surely, 2^{11111210012103} is an apocalyptic number.

11111210012103 is a deficient number, since it is larger than the sum of its proper divisors (3810751587897).

11111210012103 is a wasteful number, since it uses less digits than its factorization.

11111210012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772582.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 11111210012103 its reverse (30121001211111), we get a palindrome (41232211223214).

The spelling of 11111210012103 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, twelve thousand, one hundred three".