111385507 has 2 divisors, whose sum is σ = 111385508. Its totient is φ = 111385506.

The previous prime is 111385457. The next prime is 111385529. The reversal of 111385507 is 705583111.

It is a strong prime.

It is an emirp because it is prime and its reverse (705583111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111385507 - 2¹⁵ = 111352739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111385537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55692753 + 55692754.

It is an arithmetic number, because the mean of its divisors is an integer number (55692754).

Almost surely, 2^111385507 is an apocalyptic number.

111385507 is a deficient number, since it is larger than the sum of its proper divisors (1).

111385507 is an equidigital number, since it uses as much as digits as its factorization.

111385507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 111385507 is about 10553.9332478465. The cubic root of 111385507 is about 481.1452787939.

The spelling of 111385507 in words is "one hundred eleven million, three hundred eighty-five thousand, five hundred seven".