12501320532 has 48 divisors (see below), whose sum is σ = 31185528192. Its totient is φ = 3883898880.

The previous prime is 12501320519. The next prime is 12501320543. The reversal of 12501320532 is 23502310521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276469 + ... + 318492.

It is an arithmetic number, because the mean of its divisors is an integer number (649698504).

Almost surely, 2^12501320532 is an apocalyptic number.

12501320532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12501320532 is an abundant number, since it is smaller than the sum of its proper divisors (18684207660).

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

12501320532 is a wasteful number, since it uses less digits than its factorization.

12501320532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595088 (or 595086 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 12501320532 in words is "twelve billion, five hundred one million, three hundred twenty thousand, five hundred thirty-two".