12113378439 has 8 divisors (see below), whose sum is σ = 16154292720. Its totient is φ = 8074024896.

The previous prime is 12113378437. The next prime is 12113378447. The reversal of 12113378439 is 93487331121.

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

It is not a de Polignac number, because 12113378439 - 2¹ = 12113378437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12113378439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113378437) 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, 371952 + ... + 403205.

It is an arithmetic number, because the mean of its divisors is an integer number (2019286590).

Almost surely, 2^12113378439 is an apocalyptic number.

12113378439 is a deficient number, since it is larger than the sum of its proper divisors (4040914281).

12113378439 is an equidigital number, since it uses as much as digits as its factorization.

12113378439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780369.

The product of its digits is 108864, while the sum is 42.

The spelling of 12113378439 in words is "twelve billion, one hundred thirteen million, three hundred seventy-eight thousand, four hundred thirty-nine".