11121197 has 2 divisors, whose sum is σ = 11121198. Its totient is φ = 11121196.

The previous prime is 11121163. The next prime is 11121217. The reversal of 11121197 is 79112111.

It is a happy number.

11121197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 1267876 = 3139^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121197 - 2¹⁰ = 11120173 is a prime.

It is a Chen prime.

It is equal to p₇₃₄₀₁₈ and since 11121197 and 734018 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560598 + 5560599.

It is an arithmetic number, because the mean of its divisors is an integer number (5560599).

Almost surely, 2^11121197 is an apocalyptic number.

It is an amenable number.

11121197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121197 is an equidigital number, since it uses as much as digits as its factorization.

11121197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 23.

The square root of 11121197 is about 3334.8458735000. The cubic root of 11121197 is about 223.2118145384.

The spelling of 11121197 in words is "eleven million, one hundred twenty-one thousand, one hundred ninety-seven".