113603443 has 4 divisors (see below), whose sum is σ = 113685480. Its totient is φ = 113521408.

The previous prime is 113603423. The next prime is 113603447. The reversal of 113603443 is 344306311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113603443 is a prime.

It is a super-2 number, since 2×113603443² = 25811484522908498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113603447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38905 + ... + 41722.

It is an arithmetic number, because the mean of its divisors is an integer number (28421370).

Almost surely, 2^113603443 is an apocalyptic number.

113603443 is a deficient number, since it is larger than the sum of its proper divisors (82037).

113603443 is an equidigital number, since it uses as much as digits as its factorization.

113603443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82036.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 113603443 is about 10658.4915912150. The cubic root of 113603443 is about 484.3178748199.

Adding to 113603443 its reverse (344306311), we get a palindrome (457909754).

The spelling of 113603443 in words is "one hundred thirteen million, six hundred three thousand, four hundred forty-three".