111315563 has 2 divisors, whose sum is σ = 111315564. Its totient is φ = 111315562.

The previous prime is 111315511. The next prime is 111315569. The reversal of 111315563 is 365513111.

It is a strong prime.

It is an emirp because it is prime and its reverse (365513111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111315563 - 2²⁰ = 110266987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111315569) 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, 55657781 + 55657782.

It is an arithmetic number, because the mean of its divisors is an integer number (55657782).

Almost surely, 2^111315563 is an apocalyptic number.

111315563 is a deficient number, since it is larger than the sum of its proper divisors (1).

111315563 is an equidigital number, since it uses as much as digits as its factorization.

111315563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

The square root of 111315563 is about 10550.6190813620. The cubic root of 111315563 is about 481.0445467421.

Adding to 111315563 its reverse (365513111), we get a palindrome (476828674).

The spelling of 111315563 in words is "one hundred eleven million, three hundred fifteen thousand, five hundred sixty-three".