12530631512 has 64 divisors (see below), whose sum is σ = 27328492800. Its totient is φ = 5275578240.

The previous prime is 12530631511. The next prime is 12530631563. The reversal of 12530631512 is 21513603521.

It is a super-2 number, since 2×12530631512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530631511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824462 + ... + 839522.

It is an arithmetic number, because the mean of its divisors is an integer number (427007700).

Almost surely, 2^12530631512 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 12530631512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13664246400).

12530631512 is an abundant number, since it is smaller than the sum of its proper divisors (14797861288).

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

12530631512 is a wasteful number, since it uses less digits than its factorization.

12530631512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15336 (or 15332 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 12530631512 in words is "twelve billion, five hundred thirty million, six hundred thirty-one thousand, five hundred twelve".