11121133113 has 16 divisors (see below), whose sum is σ = 16511510400. Its totient is φ = 7397997840.

The previous prime is 11121133103. The next prime is 11121133141. The reversal of 11121133113 is 31133112111.

11121133113 is a `hidden beast` number, since 111 + 211 + 331 + 13 = 666.

It is not a de Polignac number, because 11121133113 - 2⁸ = 11121132857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11121133103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434293 + ... + 459186.

It is an arithmetic number, because the mean of its divisors is an integer number (1031969400).

Almost surely, 2^11121133113 is an apocalyptic number.

It is an amenable number.

11121133113 is a deficient number, since it is larger than the sum of its proper divisors (5390377287).

11121133113 is an equidigital number, since it uses as much as digits as its factorization.

11121133113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893949 (or 893943 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

Adding to 11121133113 its reverse (31133112111), we get a palindrome (42254245224).

It can be divided in two parts, 1112 and 1133113, that added together give a square (1134225 = 1065²).

The spelling of 11121133113 in words is "eleven billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred thirteen".