11124121 has 2 divisors, whose sum is σ = 11124122. Its totient is φ = 11124120.

The previous prime is 11124109. The next prime is 11124151. The reversal of 11124121 is 12142111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10634121 + 490000 = 3261^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 11124121 - 2¹¹ = 11122073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11124151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562060 + 5562061.

It is an arithmetic number, because the mean of its divisors is an integer number (5562061).

Almost surely, 2^11124121 is an apocalyptic number.

It is an amenable number.

11124121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11124121 is an equidigital number, since it uses as much as digits as its factorization.

11124121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 13.

The square root of 11124121 is about 3335.2842457578. The cubic root of 11124121 is about 223.2313752072.

Adding to 11124121 its reverse (12142111), we get a palindrome (23266232).

The spelling of 11124121 in words is "eleven million, one hundred twenty-four thousand, one hundred twenty-one".