11121875 has 12 divisors (see below), whose sum is σ = 13905360. Its totient is φ = 8895000.

The previous prime is 11121871. The next prime is 11121881. The reversal of 11121875 is 57812111.

11121875 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 11121875 - 2² = 11121871 is a prime.

It is a super-2 number, since 2×11121875² = 247392207031250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121871) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1346 + ... + 4904.

It is an arithmetic number, because the mean of its divisors is an integer number (1158780).

Almost surely, 2^11121875 is an apocalyptic number.

11121875 is a deficient number, since it is larger than the sum of its proper divisors (2783485).

11121875 is an frugal number, since it uses more digits than its factorization.

11121875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 3564 counting only the distinct ones).

The product of its digits is 560, while the sum is 26.

The square root of 11121875 is about 3334.9475258241. The cubic root of 11121875 is about 223.2163504571.

Adding to 11121875 its reverse (57812111), we get a palindrome (68933986).

The spelling of 11121875 in words is "eleven million, one hundred twenty-one thousand, eight hundred seventy-five".