143312120400 has 120 divisors (see below), whose sum is σ = 460308698080. Its totient is φ = 38113989120.

The previous prime is 143312120333. The next prime is 143312120407. The reversal of 143312120400 is 4021213341.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143312120407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287511 + ... + 607689.

Almost surely, 2^143312120400 is an apocalyptic number.

143312120400 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 143312120400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230154349040).

143312120400 is an abundant number, since it is smaller than the sum of its proper divisors (316996577680).

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

143312120400 is a wasteful number, since it uses less digits than its factorization.

143312120400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320573 (or 320562 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 143312120400 its reverse (4021213341), we get a palindrome (147333333741).

The spelling of 143312120400 in words is "one hundred forty-three billion, three hundred twelve million, one hundred twenty thousand, four hundred".