12113438 has 8 divisors (see below), whose sum is σ = 18241632. Its totient is φ = 6032896.

The previous prime is 12113417. The next prime is 12113443. The reversal of 12113438 is 83431121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11270 + ... + 12297.

It is an arithmetic number, because the mean of its divisors is an integer number (2280204).

Almost surely, 2^12113438 is an apocalyptic number.

12113438 is a deficient number, since it is larger than the sum of its proper divisors (6128194).

12113438 is a wasteful number, since it uses less digits than its factorization.

12113438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23826.

The product of its digits is 576, while the sum is 23.

The square root of 12113438 is about 3480.4364668817. The cubic root of 12113438 is about 229.6619988009.

Adding to 12113438 its reverse (83431121), we get a palindrome (95544559).

The spelling of 12113438 in words is "twelve million, one hundred thirteen thousand, four hundred thirty-eight".