12045535443320 has 128 divisors (see below), whose sum is σ = 28370591409600. Its totient is φ = 4599105122304.

The previous prime is 12045535443301. The next prime is 12045535443323. The reversal of 12045535443320 is 2334453554021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045535443323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13245974 + ... + 14126106.

Almost surely, 2^{12045535443320} is an apocalyptic number.

12045535443320 is a gapful number since it is divisible by the number (10) 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 12045535443320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14185295704800).

12045535443320 is an abundant number, since it is smaller than the sum of its proper divisors (16325055966280).

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

12045535443320 is a wasteful number, since it uses less digits than its factorization.

12045535443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880369 (or 880365 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 12045535443320 its reverse (2334453554021), we get a palindrome (14379988997341).

The spelling of 12045535443320 in words is "twelve trillion, forty-five billion, five hundred thirty-five million, four hundred forty-three thousand, three hundred twenty".