111112667 has 2 divisors, whose sum is σ = 111112668. Its totient is φ = 111112666.

The previous prime is 111112637. The next prime is 111112669. The reversal of 111112667 is 766211111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111112667 - 2⁸ = 111112411 is a prime.

Together with 111112669, it forms a pair of twin primes.

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 (111112669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556333 + 55556334.

It is an arithmetic number, because the mean of its divisors is an integer number (55556334).

Almost surely, 2^111112667 is an apocalyptic number.

111112667 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112667 is an equidigital number, since it uses as much as digits as its factorization.

111112667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 26.

The square root of 111112667 is about 10540.9993359264. Note that the first 3 decimals coincide. The cubic root of 111112667 is about 480.7521007387.

Adding to 111112667 its reverse (766211111), we get a palindrome (877323778).

The spelling of 111112667 in words is "one hundred eleven million, one hundred twelve thousand, six hundred sixty-seven".