113443001 has 4 divisors (see below), whose sum is σ = 129649152. Its totient is φ = 97236852.

The previous prime is 113442991. The next prime is 113443021. The reversal of 113443001 is 100344311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100344311 = 683 ⋅146917.

It is a cyclic number.

It is not a de Polignac number, because 113443001 - 2¹⁸ = 113180857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113443021) 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, 8103065 + ... + 8103078.

It is an arithmetic number, because the mean of its divisors is an integer number (32412288).

Almost surely, 2^113443001 is an apocalyptic number.

It is an amenable number.

113443001 is a deficient number, since it is larger than the sum of its proper divisors (16206151).

113443001 is an equidigital number, since it uses as much as digits as its factorization.

113443001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16206150.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113443001 is about 10650.9624447747. The cubic root of 113443001 is about 484.0897668917.

Adding to 113443001 its reverse (100344311), we get a palindrome (213787312).

The spelling of 113443001 in words is "one hundred thirteen million, four hundred forty-three thousand, one".