11011121113 has 4 divisors (see below), whose sum is σ = 11068173748. Its totient is φ = 10954068480.

The previous prime is 11011121087. The next prime is 11011121117. The reversal of 11011121113 is 31112111011.

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 2706808729 + 8304312384 = 52027^2 + 91128^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011121113 - 2⁵ = 11011121081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011121093 and 11011121102.

It is not an unprimeable number, because it can be changed into a prime (11011121117) 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, 28526028 + ... + 28526413.

It is an arithmetic number, because the mean of its divisors is an integer number (2767043437).

Almost surely, 2^11011121113 is an apocalyptic number.

It is an amenable number.

11011121113 is a deficient number, since it is larger than the sum of its proper divisors (57052635).

11011121113 is an equidigital number, since it uses as much as digits as its factorization.

11011121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57052634.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11011121113 its reverse (31112111011), we get a palindrome (42123232124).

The spelling of 11011121113 in words is "eleven billion, eleven million, one hundred twenty-one thousand, one hundred thirteen".