4020304124421 has 12 divisors (see below), whose sum is σ = 6253806415948. Its totient is φ = 2474033307264.

The previous prime is 4020304124407. The next prime is 4020304124489. The reversal of 4020304124421 is 1244214030204.

4020304124421 is a `hidden beast` number, since 4 + 0 + 203 + 0 + 4 + 12 + 442 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 154774575396 + 3865529549025 = 393414^2 + 1966095^2 .

It is not a de Polignac number, because 4020304124421 - 2⁶ = 4020304124357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020304124021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17180786740 + ... + 17180786973.

Almost surely, 2^{4020304124421} is an apocalyptic number.

It is an amenable number.

4020304124421 is a deficient number, since it is larger than the sum of its proper divisors (2233502291527).

4020304124421 is a wasteful number, since it uses less digits than its factorization.

4020304124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34361573732 (or 34361573729 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4020304124421 its reverse (1244214030204), we get a palindrome (5264518154625).

The spelling of 4020304124421 in words is "four trillion, twenty billion, three hundred four million, one hundred twenty-four thousand, four hundred twenty-one".