11136121 has 2 divisors, whose sum is σ = 11136122. Its totient is φ = 11136120.

The previous prime is 11136119. The next prime is 11136187. The reversal of 11136121 is 12163111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 7225 = 3336^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 11136121 - 2¹ = 11136119 is a prime.

Together with 11136119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11136095 and 11136104.

It is not a weakly prime, because it can be changed into another prime (11134121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568060 + 5568061.

It is an arithmetic number, because the mean of its divisors is an integer number (5568061).

Almost surely, 2^11136121 is an apocalyptic number.

It is an amenable number.

11136121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11136121 is an equidigital number, since it uses as much as digits as its factorization.

11136121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 16.

The square root of 11136121 is about 3337.0827079951. The cubic root of 11136121 is about 223.3116156699.

Adding to 11136121 its reverse (12163111), we get a palindrome (23299232).

The spelling of 11136121 in words is "eleven million, one hundred thirty-six thousand, one hundred twenty-one".