4021313411421 has 24 divisors (see below), whose sum is σ = 5876199123704. Its totient is φ = 2649732341760.

The previous prime is 4021313411347. The next prime is 4021313411459. The reversal of 4021313411421 is 1241143131204.

It is a happy number.

4021313411421 is a `hidden beast` number, since 4 + 0 + 213 + 13 + 4 + 11 + 421 = 666.

4021313411421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 184396383396 + 3836917028025 = 429414^2 + 1958805^2 .

It is not a de Polignac number, because 4021313411421 - 2⁹ = 4021313410909 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 (4021313411221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2381620 + ... + 3703341.

Almost surely, 2^{4021313411421} is an apocalyptic number.

It is an amenable number.

4021313411421 is a deficient number, since it is larger than the sum of its proper divisors (1854885712283).

4021313411421 is a wasteful number, since it uses less digits than its factorization.

4021313411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085821 (or 6085818 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 4021313411421 its reverse (1241143131204), we get a palindrome (5262456542625).

The spelling of 4021313411421 in words is "four trillion, twenty-one billion, three hundred thirteen million, four hundred eleven thousand, four hundred twenty-one".