143321398272 has 704 divisors, whose sum is σ = 497411174400. Its totient is φ = 40370503680.

The previous prime is 143321398261. The next prime is 143321398309. The reversal of 143321398272 is 272893123341.

143321398272 is a `hidden beast` number, since 1 + 433 + 2 + 139 + 82 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 211700398 + ... + 211701074.

Almost surely, 2^143321398272 is an apocalyptic number.

143321398272 is a gapful number since it is divisible by the number (12) 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 143321398272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248705587200).

143321398272 is an abundant number, since it is smaller than the sum of its proper divisors (354089776128).

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

143321398272 is a wasteful number, since it uses less digits than its factorization.

143321398272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 745 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 143321398272 in words is "one hundred forty-three billion, three hundred twenty-one million, three hundred ninety-eight thousand, two hundred seventy-two".