11111267 has 2 divisors, whose sum is σ = 11111268. Its totient is φ = 11111266.

The previous prime is 11111209. The next prime is 11111273. The reversal of 11111267 is 76211111.

It is a happy number.

11111267 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 is a cyclic number.

It is not a de Polignac number, because 11111267 - 2²² = 6916963 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11171267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555633 + 5555634.

It is an arithmetic number, because the mean of its divisors is an integer number (5555634).

Almost surely, 2^11111267 is an apocalyptic number.

11111267 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111267 is an equidigital number, since it uses as much as digits as its factorization.

11111267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 20.

The square root of 11111267 is about 3333.3567165847. The cubic root of 11111267 is about 223.1453602608.

Adding to 11111267 its reverse (76211111), we get a palindrome (87322378).

The spelling of 11111267 in words is "eleven million, one hundred eleven thousand, two hundred sixty-seven".