143121505120 has 192 divisors, whose sum is σ = 373349523456. Its totient is φ = 51414036480.

The previous prime is 143121505069. The next prime is 143121505141. The reversal of 143121505120 is 21505121341.

143121505120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86061409 + ... + 86063071.

It is an arithmetic number, because the mean of its divisors is an integer number (1944528768).

Almost surely, 2^143121505120 is an apocalyptic number.

143121505120 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 143121505120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186674761728).

143121505120 is an abundant number, since it is smaller than the sum of its proper divisors (230228018336).

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

143121505120 is a wasteful number, since it uses less digits than its factorization.

143121505120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 143121505120 its reverse (21505121341), we get a palindrome (164626626461).

The spelling of 143121505120 in words is "one hundred forty-three billion, one hundred twenty-one million, five hundred five thousand, one hundred twenty".