420244203321 has 80 divisors (see below), whose sum is σ = 637551129600. Its totient is φ = 275847897600.

The previous prime is 420244203293. The next prime is 420244203329. The reversal of 420244203321 is 123302442024.

420244203321 is a `hidden beast` number, since 4 + 202 + 4 + 420 + 3 + 32 + 1 = 666.

It is not a de Polignac number, because 420244203321 - 2²¹ = 420242106169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420244203329) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1002969250 + ... + 1002969668.

It is an arithmetic number, because the mean of its divisors is an integer number (7969389120).

Almost surely, 2^420244203321 is an apocalyptic number.

It is an amenable number.

420244203321 is a deficient number, since it is larger than the sum of its proper divisors (217306926279).

420244203321 is a wasteful number, since it uses less digits than its factorization.

420244203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 420244203321 its reverse (123302442024), we get a palindrome (543546645345).

The spelling of 420244203321 in words is "four hundred twenty billion, two hundred forty-four million, two hundred three thousand, three hundred twenty-one".