20143301203421 has 8 divisors (see below), whose sum is σ = 22389123808224. Its totient is φ = 17966580832720.

The previous prime is 20143301203367. The next prime is 20143301203429. The reversal of 20143301203421 is 12430210334102.

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 20143301203421 - 2⁶ = 20143301203357 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 (20143301203429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17275557911 + ... + 17275559076.

It is an arithmetic number, because the mean of its divisors is an integer number (2798640476028).

Almost surely, 2^{20143301203421} is an apocalyptic number.

It is an amenable number.

20143301203421 is a deficient number, since it is larger than the sum of its proper divisors (2245822604803).

20143301203421 is a wasteful number, since it uses less digits than its factorization.

20143301203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34551117051.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20143301203421 its reverse (12430210334102), we get a palindrome (32573511537523).

The spelling of 20143301203421 in words is "twenty trillion, one hundred forty-three billion, three hundred one million, two hundred three thousand, four hundred twenty-one".