11111197 has 4 divisors (see below), whose sum is σ = 11119680. Its totient is φ = 11102716.

The previous prime is 11111173. The next prime is 11111209. The reversal of 11111197 is 79111111.

11111197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79111111 = 71 ⋅1114241.

It is a cyclic number.

It is not a de Polignac number, because 11111197 - 2⁷ = 11111069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813 + ... + 5050.

It is an arithmetic number, because the mean of its divisors is an integer number (2779920).

Almost surely, 2^11111197 is an apocalyptic number.

It is an amenable number.

11111197 is a deficient number, since it is larger than the sum of its proper divisors (8483).

11111197 is an equidigital number, since it uses as much as digits as its factorization.

11111197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482.

The product of its digits is 63, while the sum is 22.

The square root of 11111197 is about 3333.3462166418. The cubic root of 11111197 is about 223.1448916611.

The spelling of 11111197 in words is "eleven million, one hundred eleven thousand, one hundred ninety-seven".