143140433421 has 8 divisors (see below), whose sum is σ = 190858448320. Its totient is φ = 95424687072.

The previous prime is 143140433413. The next prime is 143140433441. The reversal of 143140433421 is 124334041341.

143140433421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143140433421 - 2³ = 143140433413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143140433441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414001 + ... + 676518.

It is an arithmetic number, because the mean of its divisors is an integer number (23857306040).

Almost surely, 2^143140433421 is an apocalyptic number.

It is an amenable number.

143140433421 is a deficient number, since it is larger than the sum of its proper divisors (47718014899).

143140433421 is a wasteful number, since it uses less digits than its factorization.

143140433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134275.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 143140433421 its reverse (124334041341), we get a palindrome (267474474762).

The spelling of 143140433421 in words is "one hundred forty-three billion, one hundred forty million, four hundred thirty-three thousand, four hundred twenty-one".