1113012243 has 24 divisors (see below), whose sum is σ = 1872026208. Its totient is φ = 624004992.

The previous prime is 1113012233. The next prime is 1113012247. The reversal of 1113012243 is 3422103111.

It is not a de Polignac number, because 1113012243 - 2¹⁴ = 1112995859 is a prime.

1113012243 is a modest number, since divided by 12243 gives 1113 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1113012247) 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 23 ways as a sum of consecutive naturals, for example, 163330 + ... + 170007.

It is an arithmetic number, because the mean of its divisors is an integer number (78001092).

Almost surely, 2^1113012243 is an apocalyptic number.

1113012243 is a deficient number, since it is larger than the sum of its proper divisors (759013965).

1113012243 is a wasteful number, since it uses less digits than its factorization.

1113012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333403 (or 333400 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113012243 is about 33361.8381238205. The cubic root of 1113012243 is about 1036.3345579372.

Adding to 1113012243 its reverse (3422103111), we get a palindrome (4535115354).

The spelling of 1113012243 in words is "one billion, one hundred thirteen million, twelve thousand, two hundred forty-three".