12307405512 has 32 divisors (see below), whose sum is σ = 30835284480. Its totient is φ = 4093565760.

The previous prime is 12307405489. The next prime is 12307405531. The reversal of 12307405512 is 21550470321.

It is a self number, because there is not a number n which added to its sum of digits gives 12307405512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545128 + ... + 567255.

It is an arithmetic number, because the mean of its divisors is an integer number (963602640).

Almost surely, 2^12307405512 is an apocalyptic number.

12307405512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12307405512 is an abundant number, since it is smaller than the sum of its proper divisors (18527878968).

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

12307405512 is a wasteful number, since it uses less digits than its factorization.

12307405512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112853 (or 1112849 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 12307405512 its reverse (21550470321), we get a palindrome (33857875833).

The spelling of 12307405512 in words is "twelve billion, three hundred seven million, four hundred five thousand, five hundred twelve".