11121075 has 72 divisors (see below), whose sum is σ = 23831808. Its totient is φ = 4847040.

The previous prime is 11121041. The next prime is 11121083. The reversal of 11121075 is 57012111.

It is a happy number.

It is not a de Polignac number, because 11121075 - 2¹⁰ = 11120051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36072 + ... + 36378.

Almost surely, 2^11121075 is an apocalyptic number.

11121075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11121075 is an abundant number, since it is smaller than the sum of its proper divisors (12710733).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121075 is a wasteful number, since it uses less digits than its factorization.

11121075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 11121075 is about 3334.8275817499. The cubic root of 11121075 is about 223.2109983211.

Adding to 11121075 its reverse (57012111), we get a palindrome (68133186).

It can be divided in two parts, 1112 and 1075, that added together give a 7-th power (2187 = 3⁷).

The spelling of 11121075 in words is "eleven million, one hundred twenty-one thousand, seventy-five".