143421400000 has 168 divisors, whose sum is σ = 357271789392. Its totient is φ = 57120000000.

The previous prime is 143421399991. The next prime is 143421400019. The reversal of 143421400000 is 4124341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50198572 + ... + 50201428.

It is an arithmetic number, because the mean of its divisors is an integer number (2126617794).

Almost surely, 2^143421400000 is an apocalyptic number.

143421400000 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 143421400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178635894696).

143421400000 is an abundant number, since it is smaller than the sum of its proper divisors (213850389392).

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

143421400000 is an frugal number, since it uses more digits than its factorization.

143421400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3115 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 143421400000 its reverse (4124341), we get a palindrome (143425524341).

The spelling of 143421400000 in words is "one hundred forty-three billion, four hundred twenty-one million, four hundred thousand".