12143544534120 has 128 divisors (see below), whose sum is σ = 37212516426240. Its totient is φ = 3168802897920.

The previous prime is 12143544534089. The next prime is 12143544534161. The reversal of 12143544534120 is 2143544534121.

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, 31283944 + ... + 31669736.

It is an arithmetic number, because the mean of its divisors is an integer number (290722784580).

Almost surely, 2^{12143544534120} is an apocalyptic number.

12143544534120 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 12143544534120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18606258213120).

12143544534120 is an abundant number, since it is smaller than the sum of its proper divisors (25068971892120).

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

12143544534120 is a wasteful number, since it uses less digits than its factorization.

12143544534120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391435 (or 391431 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Subtracting from 12143544534120 its reverse (2143544534121), we obtain a palindrome (9999999999999).

The spelling of 12143544534120 in words is "twelve trillion, one hundred forty-three billion, five hundred forty-four million, five hundred thirty-four thousand, one hundred twenty".