113131443 has 16 divisors (see below), whose sum is σ = 153714816. Its totient is φ = 73993920.

The previous prime is 113131441. The next prime is 113131451. The reversal of 113131443 is 344131311.

It is not a de Polignac number, because 113131443 - 2¹ = 113131441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113131441) 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 15 ways as a sum of consecutive naturals, for example, 55480 + ... + 57482.

It is an arithmetic number, because the mean of its divisors is an integer number (9607176).

Almost surely, 2^113131443 is an apocalyptic number.

113131443 is a deficient number, since it is larger than the sum of its proper divisors (40583373).

113131443 is a wasteful number, since it uses less digits than its factorization.

113131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its digits is 432, while the sum is 21.

The square root of 113131443 is about 10636.3265745275. The cubic root of 113131443 is about 483.6461951683.

Adding to 113131443 its reverse (344131311), we get a palindrome (457262754).

The spelling of 113131443 in words is "one hundred thirteen million, one hundred thirty-one thousand, four hundred forty-three".