143431131344120 has 128 divisors (see below), whose sum is σ = 333521128281600. Its totient is φ = 55456623820800.

The previous prime is 143431131344113. The next prime is 143431131344173. The reversal of 143431131344120 is 21443131134341.

It is a happy number.

It is a congruent number.

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, 10595481992 + ... + 10595495528.

It is an arithmetic number, because the mean of its divisors is an integer number (2605633814700).

Almost surely, 2^{143431131344120} is an apocalyptic number.

143431131344120 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 143431131344120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166760564140800).

143431131344120 is an abundant number, since it is smaller than the sum of its proper divisors (190089996937480).

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

143431131344120 is a wasteful number, since it uses less digits than its factorization.

143431131344120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22969 (or 22965 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 143431131344120 its reverse (21443131134341), we get a palindrome (164874262478461).

The spelling of 143431131344120 in words is "one hundred forty-three trillion, four hundred thirty-one billion, one hundred thirty-one million, three hundred forty-four thousand, one hundred twenty".