4243440121004 has 18 divisors (see below), whose sum is σ = 8638431675300. Its totient is φ = 1818617194632.

The previous prime is 4243440120961. The next prime is 4243440121021. The reversal of 4243440121004 is 4001210443424.

4243440121004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10825102154 + ... + 10825102545.

It is an arithmetic number, because the mean of its divisors is an integer number (479912870850).

Almost surely, 2^{4243440121004} is an apocalyptic number.

It is an amenable number.

4243440121004 is an abundant number, since it is smaller than the sum of its proper divisors (4394991554296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4243440121004 is a wasteful number, since it uses less digits than its factorization.

4243440121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21650204717 (or 21650204708 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 4243440121004 its reverse (4001210443424), we get a palindrome (8244650564428).

The spelling of 4243440121004 in words is "four trillion, two hundred forty-three billion, four hundred forty million, one hundred twenty-one thousand, four".