113144423 has 4 divisors (see below), whose sum is σ = 129307920. Its totient is φ = 96980928.

The previous prime is 113144419. The next prime is 113144431. The reversal of 113144423 is 324441311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324441311 = 17 ⋅19084783.

It is a cyclic number.

It is not a de Polignac number, because 113144423 - 2² = 113144419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113144413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8081738 + ... + 8081751.

It is an arithmetic number, because the mean of its divisors is an integer number (32326980).

Almost surely, 2^113144423 is an apocalyptic number.

113144423 is a deficient number, since it is larger than the sum of its proper divisors (16163497).

113144423 is an equidigital number, since it uses as much as digits as its factorization.

113144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163496.

The product of its digits is 1152, while the sum is 23.

The square root of 113144423 is about 10636.9367300929. The cubic root of 113144423 is about 483.6646913157.

Adding to 113144423 its reverse (324441311), we get a palindrome (437585734).

It can be divided in two parts, 1131 and 44423, that added together give a palindrome (45554).

The spelling of 113144423 in words is "one hundred thirteen million, one hundred forty-four thousand, four hundred twenty-three".