420304444133 has 6 divisors (see below), whose sum is σ = 488925577926. Its totient is φ = 360260952072.

The previous prime is 420304444117. The next prime is 420304444199. The reversal of 420304444133 is 331444403024.

It can be written as a sum of positive squares in only one way, i.e., 411487609729 + 8816834404 = 641473^2 + 93898^2 .

It is not a de Polignac number, because 420304444133 - 2⁴ = 420304444117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420304444133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420304444633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4288820810 + ... + 4288820907.

It is an arithmetic number, because the mean of its divisors is an integer number (81487596321).

Almost surely, 2^420304444133 is an apocalyptic number.

It is an amenable number.

420304444133 is a deficient number, since it is larger than the sum of its proper divisors (68621133793).

420304444133 is an equidigital number, since it uses as much as digits as its factorization.

420304444133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577641731 (or 8577641724 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 420304444133 its reverse (331444403024), we get a palindrome (751748847157).

The spelling of 420304444133 in words is "four hundred twenty billion, three hundred four million, four hundred forty-four thousand, one hundred thirty-three".