11140121 has 4 divisors (see below), whose sum is σ = 11165712. Its totient is φ = 11114532.

The previous prime is 11140111. The next prime is 11140141. The reversal of 11140121 is 12104111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11140121 - 2²² = 6945817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11140111) 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 3 ways as a sum of consecutive naturals, for example, 12131 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (2791428).

Almost surely, 2^11140121 is an apocalyptic number.

It is an amenable number.

11140121 is a deficient number, since it is larger than the sum of its proper divisors (25591).

11140121 is an equidigital number, since it uses as much as digits as its factorization.

11140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25590.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11140121 is about 3337.6819800574. The cubic root of 11140121 is about 223.3383496806.

Adding to 11140121 its reverse (12104111), we get a palindrome (23244232).

The spelling of 11140121 in words is "eleven million, one hundred forty thousand, one hundred twenty-one".