113243443 has 4 divisors (see below), whose sum is σ = 119904840. Its totient is φ = 106582048.

The previous prime is 113243441. The next prime is 113243461. The reversal of 113243443 is 344342311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344342311 = 14401 ⋅23911.

It is a cyclic number.

It is not a de Polignac number, because 113243443 - 2¹ = 113243441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113243441) 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 3 ways as a sum of consecutive naturals, for example, 3330673 + ... + 3330706.

It is an arithmetic number, because the mean of its divisors is an integer number (29976210).

Almost surely, 2^113243443 is an apocalyptic number.

113243443 is a deficient number, since it is larger than the sum of its proper divisors (6661397).

113243443 is an equidigital number, since it uses as much as digits as its factorization.

113243443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661396.

The product of its digits is 3456, while the sum is 25.

The square root of 113243443 is about 10641.5902477026. The cubic root of 113243443 is about 483.8057455895.

Adding to 113243443 its reverse (344342311), we get a palindrome (457585754).

The spelling of 113243443 in words is "one hundred thirteen million, two hundred forty-three thousand, four hundred forty-three".