11131220110103 has 4 divisors (see below), whose sum is σ = 11131227584280. Its totient is φ = 11131212635928.

The previous prime is 11131220110051. The next prime is 11131220110117. The reversal of 11131220110103 is 30101102213111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11131220110103 - 2⁶ = 11131220110039 is a prime.

It is a super-2 number, since 2×11131220110103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131220110123) 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, 656900 + ... + 4763817.

It is an arithmetic number, because the mean of its divisors is an integer number (2782806896070).

Almost surely, 2^{11131220110103} is an apocalyptic number.

11131220110103 is a deficient number, since it is larger than the sum of its proper divisors (7474177).

11131220110103 is an equidigital number, since it uses as much as digits as its factorization.

11131220110103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474176.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11131220110103 its reverse (30101102213111), we get a palindrome (41232322323214).

The spelling of 11131220110103 in words is "eleven trillion, one hundred thirty-one billion, two hundred twenty million, one hundred ten thousand, one hundred three".