12533020032 has 128 divisors (see below), whose sum is σ = 35900091360. Its totient is φ = 3851108352.

The previous prime is 12533019979. The next prime is 12533020033. The reversal of 12533020032 is 23002033521.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×12533020032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12533019990 and 12533020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533020033) 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, 5455108 + ... + 5457404.

Almost surely, 2^12533020032 is an apocalyptic number.

12533020032 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 12533020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17950045680).

12533020032 is an abundant number, since it is smaller than the sum of its proper divisors (23367071328).

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

12533020032 is a wasteful number, since it uses less digits than its factorization.

12533020032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420 (or 3408 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 12533020032 its reverse (23002033521), we get a palindrome (35535053553).

The spelling of 12533020032 in words is "twelve billion, five hundred thirty-three million, twenty thousand, thirty-two".