12113440423 has 8 divisors (see below), whose sum is σ = 14658280992. Its totient is φ = 9772187136.

The previous prime is 12113440403. The next prime is 12113440439. The reversal of 12113440423 is 32404431121.

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

It is a cyclic number.

It is not a de Polignac number, because 12113440423 - 2¹³ = 12113432231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113440403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50896690 + ... + 50896927.

It is an arithmetic number, because the mean of its divisors is an integer number (1832285124).

Almost surely, 2^12113440423 is an apocalyptic number.

12113440423 is a deficient number, since it is larger than the sum of its proper divisors (2544840569).

12113440423 is a wasteful number, since it uses less digits than its factorization.

12113440423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101793641.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12113440423 its reverse (32404431121), we get a palindrome (44517871544).

The spelling of 12113440423 in words is "twelve billion, one hundred thirteen million, four hundred forty thousand, four hundred twenty-three".