113313243 has 4 divisors (see below), whose sum is σ = 151084328. Its totient is φ = 75542160.

The previous prime is 113313241. The next prime is 113313251. The reversal of 113313243 is 342313311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342313311 = 3 ⋅114104437.

It is not a de Polignac number, because 113313243 - 2¹ = 113313241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113313241) 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 3 ways as a sum of consecutive naturals, for example, 18885538 + ... + 18885543.

It is an arithmetic number, because the mean of its divisors is an integer number (37771082).

Almost surely, 2^113313243 is an apocalyptic number.

113313243 is a deficient number, since it is larger than the sum of its proper divisors (37771085).

113313243 is an equidigital number, since it uses as much as digits as its factorization.

113313243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37771084.

The product of its digits is 648, while the sum is 21.

The square root of 113313243 is about 10644.8693275211. The cubic root of 113313243 is about 483.9051264876.

Adding to 113313243 its reverse (342313311), we get a palindrome (455626554).

The spelling of 113313243 in words is "one hundred thirteen million, three hundred thirteen thousand, two hundred forty-three".