11628121 has 2 divisors, whose sum is σ = 11628122. Its totient is φ = 11628120.

The previous prime is 11628083. The next prime is 11628151. The reversal of 11628121 is 12182611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 68121 = 3400^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 11628121 - 2¹¹ = 11626073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11628092 and 11628101.

It is not a weakly prime, because it can be changed into another prime (11628151) 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 as a sum of consecutive naturals, namely, 5814060 + 5814061.

It is an arithmetic number, because the mean of its divisors is an integer number (5814061).

Almost surely, 2^11628121 is an apocalyptic number.

It is an amenable number.

11628121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11628121 is an equidigital number, since it uses as much as digits as its factorization.

11628121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 22.

The square root of 11628121 is about 3410.0030791775. The cubic root of 11628121 is about 226.5530156410.

The spelling of 11628121 in words is "eleven million, six hundred twenty-eight thousand, one hundred twenty-one".