113402243 has 4 divisors (see below), whose sum is σ = 113454408. Its totient is φ = 113350080.

The previous prime is 113402231. The next prime is 113402249. The reversal of 113402243 is 342204311.

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

It is a cyclic number.

It is not a de Polignac number, because 113402243 - 2²⁰ = 112353667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113402249) 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, 22673 + ... + 27218.

It is an arithmetic number, because the mean of its divisors is an integer number (28363602).

Almost surely, 2^113402243 is an apocalyptic number.

113402243 is a deficient number, since it is larger than the sum of its proper divisors (52165).

113402243 is an equidigital number, since it uses as much as digits as its factorization.

113402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52164.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 113402243 is about 10649.0489246693. The cubic root of 113402243 is about 484.0317850742.

Adding to 113402243 its reverse (342204311), we get a palindrome (455606554).

The spelling of 113402243 in words is "one hundred thirteen million, four hundred two thousand, two hundred forty-three".