113421441 has 32 divisors (see below), whose sum is σ = 181094400. Its totient is φ = 61737984.

The previous prime is 113421439. The next prime is 113421493. The reversal of 113421441 is 144124311.

It is not a de Polignac number, because 113421441 - 2¹ = 113421439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (113421641) 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 31 ways as a sum of consecutive naturals, for example, 216606 + ... + 217128.

It is an arithmetic number, because the mean of its divisors is an integer number (5659200).

Almost surely, 2^113421441 is an apocalyptic number.

It is an amenable number.

113421441 is a deficient number, since it is larger than the sum of its proper divisors (67672959).

113421441 is a wasteful number, since it uses less digits than its factorization.

113421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its digits is 384, while the sum is 21.

The square root of 113421441 is about 10649.9502815741. The cubic root of 113421441 is about 484.0590976377.

Adding to 113421441 its reverse (144124311), we get a palindrome (257545752).

The spelling of 113421441 in words is "one hundred thirteen million, four hundred twenty-one thousand, four hundred forty-one".