12530444032 has 72 divisors (see below), whose sum is σ = 25876712960. Its totient is φ = 6049520640.

The previous prime is 12530444027. The next prime is 12530444039. The reversal of 12530444032 is 23044403521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530444039) 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, 4149019 + ... + 4152037.

Almost surely, 2^12530444032 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 12530444032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12938356480).

12530444032 is an abundant number, since it is smaller than the sum of its proper divisors (13346268928).

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

12530444032 is an equidigital number, since it uses as much as digits as its factorization.

12530444032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 12530444032 its reverse (23044403521), we get a palindrome (35574847553).

The spelling of 12530444032 in words is "twelve billion, five hundred thirty million, four hundred forty-four thousand, thirty-two".