111689107 has 2 divisors, whose sum is σ = 111689108. Its totient is φ = 111689106.

The previous prime is 111689101. The next prime is 111689111. The reversal of 111689107 is 701986111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111689107 - 2⁷ = 111688979 is a prime.

It is not a weakly prime, because it can be changed into another prime (111689101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55844553 + 55844554.

It is an arithmetic number, because the mean of its divisors is an integer number (55844554).

Almost surely, 2^111689107 is an apocalyptic number.

111689107 is a deficient number, since it is larger than the sum of its proper divisors (1).

111689107 is an equidigital number, since it uses as much as digits as its factorization.

111689107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 34.

The square root of 111689107 is about 10568.3067234065. The cubic root of 111689107 is about 481.5820297775.

The spelling of 111689107 in words is "one hundred eleven million, six hundred eighty-nine thousand, one hundred seven".