11128193939 has 4 divisors (see below), whose sum is σ = 11161215624. Its totient is φ = 11095172256.

The previous prime is 11128193933. The next prime is 11128193981. The reversal of 11128193939 is 93939182111.

11128193939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11128193939 - 2³² = 6833226643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11128193893 and 11128193902.

It is not an unprimeable number, because it can be changed into a prime (11128193933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16510337 + ... + 16511010.

It is an arithmetic number, because the mean of its divisors is an integer number (2790303906).

Almost surely, 2^11128193939 is an apocalyptic number.

11128193939 is a deficient number, since it is larger than the sum of its proper divisors (33021685).

11128193939 is an equidigital number, since it uses as much as digits as its factorization.

11128193939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33021684.

The product of its digits is 104976, while the sum is 47.

The spelling of 11128193939 in words is "eleven billion, one hundred twenty-eight million, one hundred ninety-three thousand, nine hundred thirty-nine".