12340043232 has 192 divisors, whose sum is σ = 37538049024. Its totient is φ = 3507978240.

The previous prime is 12340043203. The next prime is 12340043273. The reversal of 12340043232 is 23234004321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6587448 + ... + 6589320.

It is an arithmetic number, because the mean of its divisors is an integer number (195510672).

Almost surely, 2^12340043232 is an apocalyptic number.

12340043232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12340043232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18769024512).

12340043232 is an abundant number, since it is smaller than the sum of its proper divisors (25198005792).

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

12340043232 is a wasteful number, since it uses less digits than its factorization.

12340043232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2273 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12340043232 its reverse (23234004321), we get a palindrome (35574047553).

The spelling of 12340043232 in words is "twelve billion, three hundred forty million, forty-three thousand, two hundred thirty-two".