11121125 has 8 divisors (see below), whose sum is σ = 13879320. Its totient is φ = 8896800.

The previous prime is 11121083. The next prime is 11121139. The reversal of 11121125 is 52112111.

It can be written as a sum of positive squares in 4 ways, for example, as 158404 + 10962721 = 398^2 + 3311^2 .

It is not a de Polignac number, because 11121125 - 2⁸ = 11120869 is a prime.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 44360 + ... + 44609.

It is an arithmetic number, because the mean of its divisors is an integer number (1734915).

Almost surely, 2^11121125 is an apocalyptic number.

It is an amenable number.

11121125 is a deficient number, since it is larger than the sum of its proper divisors (2758195).

11121125 is an frugal number, since it uses more digits than its factorization.

11121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88984 (or 88974 counting only the distinct ones).

The product of its digits is 20, while the sum is 14.

The square root of 11121125 is about 3334.8350783809. The cubic root of 11121125 is about 223.2113328371.

Adding to 11121125 its reverse (52112111), we get a palindrome (63233236).

The spelling of 11121125 in words is "eleven million, one hundred twenty-one thousand, one hundred twenty-five".