11223111113 has 4 divisors (see below), whose sum is σ = 11241420228. Its totient is φ = 11204802000.

The previous prime is 11223111091. The next prime is 11223111139. The reversal of 11223111113 is 31111132211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15077689 + 11208033424 = 3883^2 + 105868^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223111113 - 2⁶ = 11223111049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11223111091 and 11223111100.

It is not an unprimeable number, because it can be changed into a prime (11223119113) 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, 9153638 + ... + 9154863.

It is an arithmetic number, because the mean of its divisors is an integer number (2810355057).

Almost surely, 2^11223111113 is an apocalyptic number.

It is an amenable number.

11223111113 is a deficient number, since it is larger than the sum of its proper divisors (18309115).

11223111113 is an equidigital number, since it uses as much as digits as its factorization.

11223111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18309114.

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

Adding to 11223111113 its reverse (31111132211), we get a palindrome (42334243324).

The spelling of 11223111113 in words is "eleven billion, two hundred twenty-three million, one hundred eleven thousand, one hundred thirteen".