1113115663 has 12 divisors (see below), whose sum is σ = 1224674640. Its totient is φ = 1010958080.

The previous prime is 1113115657. The next prime is 1113115691. The reversal of 1113115663 is 3665113111.

It is not a de Polignac number, because 1113115663 - 2²⁹ = 576244751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113115603) 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 in 11 ways as a sum of consecutive naturals, for example, 143478 + ... + 151036.

It is an arithmetic number, because the mean of its divisors is an integer number (102056220).

Almost surely, 2^1113115663 is an apocalyptic number.

1113115663 is a deficient number, since it is larger than the sum of its proper divisors (111558977).

1113115663 is a wasteful number, since it uses less digits than its factorization.

1113115663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798 (or 8787 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 1113115663 is about 33363.3880623656. The cubic root of 1113115663 is about 1036.3666553381.

Adding to 1113115663 its reverse (3665113111), we get a palindrome (4778228774).

It can be divided in two parts, 1113115 and 663, that added together give a triangular number (1113778 = T₁₄₉₂).

The spelling of 1113115663 in words is "one billion, one hundred thirteen million, one hundred fifteen thousand, six hundred sixty-three".