12530134432 has 12 divisors (see below), whose sum is σ = 24668702226. Its totient is φ = 6265067200.

The previous prime is 12530134367. The next prime is 12530134469. The reversal of 12530134432 is 23443103521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8715342736 + 3814791696 = 93356^2 + 61764^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12530134432.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195783319 + ... + 195783382.

Almost surely, 2^12530134432 is an apocalyptic number.

It is an amenable number.

12530134432 is a deficient number, since it is larger than the sum of its proper divisors (12138567794).

12530134432 is an equidigital number, since it uses as much as digits as its factorization.

12530134432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391566711 (or 391566703 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 12530134432 its reverse (23443103521), we get a palindrome (35973237953).

The spelling of 12530134432 in words is "twelve billion, five hundred thirty million, one hundred thirty-four thousand, four hundred thirty-two".