20143043224 has 16 divisors (see below), whose sum is σ = 39410302320. Its totient is φ = 9633629280.

The previous prime is 20143043159. The next prime is 20143043243. The reversal of 20143043224 is 42234034102.

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 3 ways as a sum of consecutive naturals, for example, 54736347 + ... + 54736714.

It is an arithmetic number, because the mean of its divisors is an integer number (2463143895).

Almost surely, 2^20143043224 is an apocalyptic number.

It is an amenable number.

20143043224 is a deficient number, since it is larger than the sum of its proper divisors (19267259096).

20143043224 is a wasteful number, since it uses less digits than its factorization.

20143043224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109473090 (or 109473086 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20143043224 its reverse (42234034102), we get a palindrome (62377077326).

The spelling of 20143043224 in words is "twenty billion, one hundred forty-three million, forty-three thousand, two hundred twenty-four".