111355663 has 2 divisors, whose sum is σ = 111355664. Its totient is φ = 111355662.

The previous prime is 111355613. The next prime is 111355687. The reversal of 111355663 is 366553111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111355663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111355603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55677831 + 55677832.

It is an arithmetic number, because the mean of its divisors is an integer number (55677832).

Almost surely, 2^111355663 is an apocalyptic number.

111355663 is a deficient number, since it is larger than the sum of its proper divisors (1).

111355663 is an equidigital number, since it uses as much as digits as its factorization.

111355663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 111355663 is about 10552.5192726666. The cubic root of 111355663 is about 481.1023031778.

It can be divided in two parts, 11135566 and 3, that added together give a square (11135569 = 3337²).

The spelling of 111355663 in words is "one hundred eleven million, three hundred fifty-five thousand, six hundred sixty-three".