12125342432 has 72 divisors (see below), whose sum is σ = 27805974840. Its totient is φ = 5189694720.

The previous prime is 12125342407. The next prime is 12125342443. The reversal of 12125342432 is 23424352121.

It is a junction number, because it is equal to n+sod(n) for n = 12125342395 and 12125342404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282619 + ... + 1292037.

It is an arithmetic number, because the mean of its divisors is an integer number (386194095).

Almost surely, 2^12125342432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12125342432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13902987420).

12125342432 is an abundant number, since it is smaller than the sum of its proper divisors (15680632408).

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

12125342432 is an equidigital number, since it uses as much as digits as its factorization.

12125342432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264 (or 10249 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 12125342432 its reverse (23424352121), we get a palindrome (35549694553).

The spelling of 12125342432 in words is "twelve billion, one hundred twenty-five million, three hundred forty-two thousand, four hundred thirty-two".