111112087 has 2 divisors, whose sum is σ = 111112088. Its totient is φ = 111112086.

The previous prime is 111112081. The next prime is 111112121. The reversal of 111112087 is 780211111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111112087 - 2²³ = 102723479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556043 + 55556044.

It is an arithmetic number, because the mean of its divisors is an integer number (55556044).

Almost surely, 2^111112087 is an apocalyptic number.

111112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112087 is an equidigital number, since it uses as much as digits as its factorization.

111112087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

The square root of 111112087 is about 10540.9718242674. The cubic root of 111112087 is about 480.7512642403.

Adding to 111112087 its reverse (780211111), we get a palindrome (891323198).

The spelling of 111112087 in words is "one hundred eleven million, one hundred twelve thousand, eighty-seven".