12533053512 has 128 divisors (see below), whose sum is σ = 37674282240. Its totient is φ = 3399045120.

The previous prime is 12533053501. The next prime is 12533053607. The reversal of 12533053512 is 21535033521.

It is a self number, because there is not a number n which added to its sum of digits gives 12533053512.

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, 230268 + ... + 279444.

It is an arithmetic number, because the mean of its divisors is an integer number (294330330).

Almost surely, 2^12533053512 is an apocalyptic number.

12533053512 is a gapful number since it is divisible by the number (12) 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 12533053512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18837141120).

12533053512 is an abundant number, since it is smaller than the sum of its proper divisors (25141228728).

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

12533053512 is a wasteful number, since it uses less digits than its factorization.

12533053512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49271 (or 49267 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 12533053512 in words is "twelve billion, five hundred thirty-three million, fifty-three thousand, five hundred twelve".