12002143552 has 28 divisors (see below), whose sum is σ = 27219148000. Its totient is φ = 5143775616.

The previous prime is 12002143523. The next prime is 12002143561. The reversal of 12002143552 is 25534120021.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13394802 + ... + 13395697.

Almost surely, 2^12002143552 is an apocalyptic number.

It is an amenable number.

12002143552 is an abundant number, since it is smaller than the sum of its proper divisors (15217004448).

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

12002143552 is an equidigital number, since it uses as much as digits as its factorization.

12002143552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790518 (or 26790508 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12002143552 its reverse (25534120021), we get a palindrome (37536263573).

The spelling of 12002143552 in words is "twelve billion, two million, one hundred forty-three thousand, five hundred fifty-two".