20143423343 has 8 divisors (see below), whose sum is σ = 20198985120. Its totient is φ = 20087933440.

The previous prime is 20143423243. The next prime is 20143423393. The reversal of 20143423343 is 34332434102.

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

It is a cyclic number.

It is not a de Polignac number, because 20143423343 - 2⁸ = 20143423087 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 (20143423393) 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, 569471 + ... + 603807.

It is an arithmetic number, because the mean of its divisors is an integer number (2524873140).

Almost surely, 2^20143423343 is an apocalyptic number.

20143423343 is a deficient number, since it is larger than the sum of its proper divisors (55561777).

20143423343 is a wasteful number, since it uses less digits than its factorization.

20143423343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35937.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20143423343 its reverse (34332434102), we get a palindrome (54475857445).

The spelling of 20143423343 in words is "twenty billion, one hundred forty-three million, four hundred twenty-three thousand, three hundred forty-three".