11013111103 has 4 divisors (see below), whose sum is σ = 11021168880. Its totient is φ = 11005053328.

The previous prime is 11013111077. The next prime is 11013111143. The reversal of 11013111103 is 30111131011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11013111103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013111143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4026838 + ... + 4029571.

It is an arithmetic number, because the mean of its divisors is an integer number (2755292220).

Almost surely, 2^11013111103 is an apocalyptic number.

11013111103 is a deficient number, since it is larger than the sum of its proper divisors (8057777).

11013111103 is an equidigital number, since it uses as much as digits as its factorization.

11013111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057776.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11013111103 its reverse (30111131011), we get a palindrome (41124242114).

The spelling of 11013111103 in words is "eleven billion, thirteen million, one hundred eleven thousand, one hundred three".