111116407 has 2 divisors, whose sum is σ = 111116408. Its totient is φ = 111116406.

The previous prime is 111116399. The next prime is 111116449. The reversal of 111116407 is 704611111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111116407 - 2³ = 111116399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111116477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55558203 + 55558204.

It is an arithmetic number, because the mean of its divisors is an integer number (55558204).

Almost surely, 2^111116407 is an apocalyptic number.

111116407 is a deficient number, since it is larger than the sum of its proper divisors (1).

111116407 is an equidigital number, since it uses as much as digits as its factorization.

111116407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 111116407 is about 10541.1767369682. The cubic root of 111116407 is about 480.7574946413.

Adding to 111116407 its reverse (704611111), we get a palindrome (815727518).

The spelling of 111116407 in words is "one hundred eleven million, one hundred sixteen thousand, four hundred seven".