4520200420421 has 8 divisors (see below), whose sum is σ = 5166058707840. Its totient is φ = 3874370975568.

The previous prime is 4520200420399. The next prime is 4520200420427. The reversal of 4520200420421 is 1240240020254.

4520200420421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4520200420421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520200420427) 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, 6873761 + ... + 7502598.

It is an arithmetic number, because the mean of its divisors is an integer number (645757338480).

Almost surely, 2^{4520200420421} is an apocalyptic number.

It is an amenable number.

4520200420421 is a deficient number, since it is larger than the sum of its proper divisors (645858287419).

4520200420421 is a wasteful number, since it uses less digits than its factorization.

4520200420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421283.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 4520200420421 its reverse (1240240020254), we get a palindrome (5760440440675).

The spelling of 4520200420421 in words is "four trillion, five hundred twenty billion, two hundred million, four hundred twenty thousand, four hundred twenty-one".