4021243421313 has 4 divisors (see below), whose sum is σ = 5361657895088. Its totient is φ = 2680828947540.

The previous prime is 4021243421207. The next prime is 4021243421323. The reversal of 4021243421313 is 3131243421204.

4021243421313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4021243421313 - 2¹⁶ = 4021243355777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021243421323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670207236883 + ... + 670207236888.

It is an arithmetic number, because the mean of its divisors is an integer number (1340414473772).

Almost surely, 2^{4021243421313} is an apocalyptic number.

It is an amenable number.

4021243421313 is a deficient number, since it is larger than the sum of its proper divisors (1340414473775).

4021243421313 is a wasteful number, since it uses less digits than its factorization.

4021243421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340414473774.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 4021243421313 its reverse (3131243421204), we get a palindrome (7152486842517).

The spelling of 4021243421313 in words is "four trillion, twenty-one billion, two hundred forty-three million, four hundred twenty-one thousand, three hundred thirteen".