12530631520 has 192 divisors, whose sum is σ = 33564948480. Its totient is φ = 4379443200.

The previous prime is 12530631511. The next prime is 12530631563. The reversal of 12530631520 is 2513603521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8892576 + ... + 8893984.

It is an arithmetic number, because the mean of its divisors is an integer number (174817440).

Almost surely, 2^12530631520 is an apocalyptic number.

12530631520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12530631520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16782474240).

12530631520 is an abundant number, since it is smaller than the sum of its proper divisors (21034316960).

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

12530631520 is a wasteful number, since it uses less digits than its factorization.

12530631520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 12530631520 in words is "twelve billion, five hundred thirty million, six hundred thirty-one thousand, five hundred twenty".