113423 has 4 divisors (see below), whose sum is σ = 114648. Its totient is φ = 112200.

The previous prime is 113417. The next prime is 113437. The reversal of 113423 is 324311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113423 - 2⁶ = 113359 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 113398 and 113407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113453) 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, 461 + ... + 662.

It is an arithmetic number, because the mean of its divisors is an integer number (28662).

2¹¹³⁴²³ is an apocalyptic number.

113423 is a deficient number, since it is larger than the sum of its proper divisors (1225).

113423 is a wasteful number, since it uses less digits than its factorization.

113423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its digits is 72, while the sum is 14.

The square root of 113423 is about 336.7833131258. The cubic root of 113423 is about 48.4061315457.

Adding to 113423 its reverse (324311), we get a palindrome (437734).

The spelling of 113423 in words is "one hundred thirteen thousand, four hundred twenty-three".