4324444120021 has 4 divisors (see below), whose sum is σ = 4324498628544. Its totient is φ = 4324389611500.

The previous prime is 4324444119929. The next prime is 4324444120037. The reversal of 4324444120021 is 1200214444234.

It is a happy number.

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 4324444120021 - 2²⁷ = 4324309902293 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 (4324444120091) 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, 27135085 + ... + 27293986.

It is an arithmetic number, because the mean of its divisors is an integer number (1081124657136).

Almost surely, 2^{4324444120021} is an apocalyptic number.

It is an amenable number.

4324444120021 is a deficient number, since it is larger than the sum of its proper divisors (54508523).

4324444120021 is an equidigital number, since it uses as much as digits as its factorization.

4324444120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54508522.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4324444120021 its reverse (1200214444234), we get a palindrome (5524658564255).

The spelling of 4324444120021 in words is "four trillion, three hundred twenty-four billion, four hundred forty-four million, one hundred twenty thousand, twenty-one".