111940663 has 2 divisors, whose sum is σ = 111940664. Its totient is φ = 111940662.

The previous prime is 111940649. The next prime is 111940681. The reversal of 111940663 is 366049111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111940663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111940603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55970331 + 55970332.

It is an arithmetic number, because the mean of its divisors is an integer number (55970332).

Almost surely, 2^111940663 is an apocalyptic number.

111940663 is a deficient number, since it is larger than the sum of its proper divisors (1).

111940663 is an equidigital number, since it uses as much as digits as its factorization.

111940663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 111940663 is about 10580.2014631102. The cubic root of 111940663 is about 481.9433124336.

Adding to 111940663 its reverse (366049111), we get a palindrome (477989774).

The spelling of 111940663 in words is "one hundred eleven million, nine hundred forty thousand, six hundred sixty-three".