11103220131111 has 24 divisors (see below), whose sum is σ = 16167319225200. Its totient is φ = 7342502169600.

The previous prime is 11103220131049. The next prime is 11103220131139. The reversal of 11103220131111 is 11113102230111.

11103220131111 is a `hidden beast` number, since 1 + 110 + 32 + 201 + 311 + 11 = 666.

It is not a de Polignac number, because 11103220131111 - 2⁷ = 11103220130983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103220131611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 748615 + ... + 4771463.

It is an arithmetic number, because the mean of its divisors is an integer number (673638301050).

Almost surely, 2^{11103220131111} is an apocalyptic number.

11103220131111 is a deficient number, since it is larger than the sum of its proper divisors (5064099094089).

11103220131111 is a wasteful number, since it uses less digits than its factorization.

11103220131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025327 (or 4025324 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 11103220131111 its reverse (11113102230111), we get a palindrome (22216322361222).

The spelling of 11103220131111 in words is "eleven trillion, one hundred three billion, two hundred twenty million, one hundred thirty-one thousand, one hundred eleven".