11031223113 has 8 divisors (see below), whose sum is σ = 16342552800. Its totient is φ = 7354148724.

The previous prime is 11031223111. The next prime is 11031223127. The reversal of 11031223113 is 31132213011.

11031223113 is a `hidden beast` number, since 110 + 312 + 231 + 13 = 666.

It is not a de Polignac number, because 11031223113 - 2¹ = 11031223111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11031223111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204281883 + ... + 204281936.

It is an arithmetic number, because the mean of its divisors is an integer number (2042819100).

Almost surely, 2^11031223113 is an apocalyptic number.

It is an amenable number.

11031223113 is a deficient number, since it is larger than the sum of its proper divisors (5311329687).

11031223113 is an equidigital number, since it uses as much as digits as its factorization.

11031223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408563828 (or 408563822 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11031223113 its reverse (31132213011), we get a palindrome (42163436124).

The spelling of 11031223113 in words is "eleven billion, thirty-one million, two hundred twenty-three thousand, one hundred thirteen".