20420322203401 has 8 divisors (see below), whose sum is σ = 21495117765600. Its totient is φ = 19345530817440.

The previous prime is 20420322203399. The next prime is 20420322203417. The reversal of 20420322203401 is 10430222302402.

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 20420322203401 - 2¹ = 20420322203399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20420322203431) 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, 16903965 + ... + 18071653.

It is an arithmetic number, because the mean of its divisors is an integer number (2686889720700).

Almost surely, 2^{20420322203401} is an apocalyptic number.

It is an amenable number.

20420322203401 is a deficient number, since it is larger than the sum of its proper divisors (1074795562199).

20420322203401 is a wasteful number, since it uses less digits than its factorization.

20420322203401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088119.

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

Adding to 20420322203401 its reverse (10430222302402), we get a palindrome (30850544505803).

Subtracting from 20420322203401 its reverse (10430222302402), we obtain a palindrome (9990099900999).

The spelling of 20420322203401 in words is "twenty trillion, four hundred twenty billion, three hundred twenty-two million, two hundred three thousand, four hundred one".