1113520043 has 8 divisors (see below), whose sum is σ = 1188023760. Its totient is φ = 1040016640.

The previous prime is 1113520013. The next prime is 1113520049. The reversal of 1113520043 is 3400253111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1113520043 - 2²⁰ = 1112471467 is a prime.

It is a Duffinian number.

1113520043 is a modest number, since divided by 20043 gives 11135 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1113519997 and 1113520024.

It is not an unprimeable number, because it can be changed into a prime (1113520049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247778 + ... + 252231.

It is an arithmetic number, because the mean of its divisors is an integer number (148502970).

Almost surely, 2^1113520043 is an apocalyptic number.

1113520043 is a deficient number, since it is larger than the sum of its proper divisors (74503717).

1113520043 is a wasteful number, since it uses less digits than its factorization.

1113520043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500157.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1113520043 is about 33369.4477479026. The cubic root of 1113520043 is about 1036.4921395151.

Adding to 1113520043 its reverse (3400253111), we get a palindrome (4513773154).

The spelling of 1113520043 in words is "one billion, one hundred thirteen million, five hundred twenty thousand, forty-three".