4313040421021 has 4 divisors (see below), whose sum is σ = 4317594846912. Its totient is φ = 4308485995132.

The previous prime is 4313040421007. The next prime is 4313040421061. The reversal of 4313040421021 is 1201240403134.

4313040421021 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 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 a cyclic number.

It is not a de Polignac number, because 4313040421021 - 2⁹ = 4313040420509 is a prime.

It is a super-2 number, since 2×4313040421021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4313040421061) 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, 2277211525 + ... + 2277213418.

It is an arithmetic number, because the mean of its divisors is an integer number (1079398711728).

Almost surely, 2^{4313040421021} is an apocalyptic number.

It is an amenable number.

4313040421021 is a deficient number, since it is larger than the sum of its proper divisors (4554425891).

4313040421021 is an equidigital number, since it uses as much as digits as its factorization.

4313040421021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554425890.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4313040421021 its reverse (1201240403134), we get a palindrome (5514280824155).

The spelling of 4313040421021 in words is "four trillion, three hundred thirteen billion, forty million, four hundred twenty-one thousand, twenty-one".