11128071 has 4 divisors (see below), whose sum is σ = 14837432. Its totient is φ = 7418712.

The previous prime is 11128069. The next prime is 11128093. The reversal of 11128071 is 17082111.

11128071 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17082111 = 3 ⋅5694037.

It is not a de Polignac number, because 11128071 - 2¹ = 11128069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11128001) 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, 1854676 + ... + 1854681.

It is an arithmetic number, because the mean of its divisors is an integer number (3709358).

Almost surely, 2^11128071 is an apocalyptic number.

11128071 is a deficient number, since it is larger than the sum of its proper divisors (3709361).

11128071 is an equidigital number, since it uses as much as digits as its factorization.

11128071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709360.

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 11128071 is about 3335.8763466292. The cubic root of 11128071 is about 223.2577940612.

It can be divided in two parts, 111 and 28071, that added together give a palindrome (28182).

The spelling of 11128071 in words is "eleven million, one hundred twenty-eight thousand, seventy-one".