2420320203421 has 4 divisors (see below), whose sum is σ = 2431173657472. Its totient is φ = 2409466749372.

The previous prime is 2420320203383. The next prime is 2420320203467. The reversal of 2420320203421 is 1243020230242.

2420320203421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2420320203421 - 2¹⁹ = 2420319679133 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 (2420320200421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5426726691 + ... + 5426727136.

It is an arithmetic number, because the mean of its divisors is an integer number (607793414368).

Almost surely, 2^{2420320203421} is an apocalyptic number.

It is an amenable number.

2420320203421 is a deficient number, since it is larger than the sum of its proper divisors (10853454051).

2420320203421 is a wasteful number, since it uses less digits than its factorization.

2420320203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853454050.

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

Adding to 2420320203421 its reverse (1243020230242), we get a palindrome (3663340433663).

The spelling of 2420320203421 in words is "two trillion, four hundred twenty billion, three hundred twenty million, two hundred three thousand, four hundred twenty-one".