12130113438 has 24 divisors (see below), whose sum is σ = 26473756608. Its totient is φ = 4013856672.

The previous prime is 12130113431. The next prime is 12130113439. The reversal of 12130113438 is 83431103121.

12130113438 is a `hidden beast` number, since 1 + 213 + 0 + 1 + 13 + 438 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130113431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457006 + ... + 2461937.

It is an arithmetic number, because the mean of its divisors is an integer number (1103073192).

Almost surely, 2^12130113438 is an apocalyptic number.

12130113438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12130113438 is an abundant number, since it is smaller than the sum of its proper divisors (14343643170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12130113438 is a wasteful number, since it uses less digits than its factorization.

12130113438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919088 (or 4919085 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 12130113438 its reverse (83431103121), we get a palindrome (95561216559).

The spelling of 12130113438 in words is "twelve billion, one hundred thirty million, one hundred thirteen thousand, four hundred thirty-eight".