20143144423 has 8 divisors (see below), whose sum is σ = 20839416480. Its totient is φ = 19446984480.

The previous prime is 20143144409. The next prime is 20143144457. The reversal of 20143144423 is 32444134102.

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 20143144423 - 2¹⁷ = 20143013351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20143144391 and 20143144400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143144523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518238 + ... + 555748.

It is an arithmetic number, because the mean of its divisors is an integer number (2604927060).

Almost surely, 2^20143144423 is an apocalyptic number.

20143144423 is a deficient number, since it is larger than the sum of its proper divisors (696272057).

20143144423 is a wasteful number, since it uses less digits than its factorization.

20143144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56057.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20143144423 its reverse (32444134102), we get a palindrome (52587278525).

The spelling of 20143144423 in words is "twenty billion, one hundred forty-three million, one hundred forty-four thousand, four hundred twenty-three".