12513012532 has 6 divisors (see below), whose sum is σ = 21897771938. Its totient is φ = 6256506264.

The previous prime is 12513012517. The next prime is 12513012553. The reversal of 12513012532 is 23521031521.

It can be written as a sum of positive squares in only one way, i.e., 8375178256 + 4137834276 = 91516^2 + 64326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12513012497 and 12513012506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564126563 + ... + 1564126570.

Almost surely, 2^12513012532 is an apocalyptic number.

It is an amenable number.

12513012532 is a deficient number, since it is larger than the sum of its proper divisors (9384759406).

12513012532 is a wasteful number, since it uses less digits than its factorization.

12513012532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128253137 (or 3128253135 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12513012532 in words is "twelve billion, five hundred thirteen million, twelve thousand, five hundred thirty-two".