113511563 has 4 divisors (see below), whose sum is σ = 123830808. Its totient is φ = 103192320.

The previous prime is 113511473. The next prime is 113511571. The reversal of 113511563 is 365115311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365115311 = 11 ⋅33192301.

It is not a de Polignac number, because 113511563 - 2¹⁰ = 113510539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113511163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5159606 + ... + 5159627.

It is an arithmetic number, because the mean of its divisors is an integer number (30957702).

Almost surely, 2^113511563 is an apocalyptic number.

113511563 is a deficient number, since it is larger than the sum of its proper divisors (10319245).

113511563 is a wasteful number, since it uses less digits than its factorization.

113511563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10319244.

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

The square root of 113511563 is about 10654.1805409895. The cubic root of 113511563 is about 484.1872710072.

Adding to 113511563 its reverse (365115311), we get a palindrome (478626874).

The spelling of 113511563 in words is "one hundred thirteen million, five hundred eleven thousand, five hundred sixty-three".