12432013033520 has 40 divisors (see below), whose sum is σ = 29311534968480. Its totient is φ = 4902765701120.

The previous prime is 12432013033507. The next prime is 12432013033523. The reversal of 12432013033520 is 2533031023421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12432013033520² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12432013033523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094361665 + ... + 1094373024.

It is an arithmetic number, because the mean of its divisors is an integer number (732788374212).

Almost surely, 2^{12432013033520} is an apocalyptic number.

12432013033520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432013033520 is an abundant number, since it is smaller than the sum of its proper divisors (16879521934960).

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

12432013033520 is a wasteful number, since it uses less digits than its factorization.

12432013033520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188734773 (or 2188734767 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 12432013033520 its reverse (2533031023421), we get a palindrome (14965044056941).

The spelling of 12432013033520 in words is "twelve trillion, four hundred thirty-two billion, thirteen million, thirty-three thousand, five hundred twenty".