1113311563 has 16 divisors (see below), whose sum is σ = 1371192256. Its totient is φ = 880243200.

The previous prime is 1113311543. The next prime is 1113311599. The reversal of 1113311563 is 3651133111.

It is a cyclic number.

It is not a de Polignac number, because 1113311563 - 2⁵ = 1113311531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113311543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160495 + ... + 167287.

It is an arithmetic number, because the mean of its divisors is an integer number (85699516).

Almost surely, 2^1113311563 is an apocalyptic number.

1113311563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113311563 is a deficient number, since it is larger than the sum of its proper divisors (257880693).

1113311563 is a wasteful number, since it uses less digits than its factorization.

1113311563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614.

The product of its digits is 810, while the sum is 25.

The square root of 1113311563 is about 33366.3237861170. The cubic root of 1113311563 is about 1036.4274493554.

Adding to 1113311563 its reverse (3651133111), we get a palindrome (4764444674).

The spelling of 1113311563 in words is "one billion, one hundred thirteen million, three hundred eleven thousand, five hundred sixty-three".