4441243321423 has 4 divisors (see below), whose sum is σ = 4441249593648. Its totient is φ = 4441237049200.

The previous prime is 4441243321387. The next prime is 4441243321429. The reversal of 4441243321423 is 3241233421444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4441243321423 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 (4441243321429) 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, 1915678 + ... + 3542923.

It is an arithmetic number, because the mean of its divisors is an integer number (1110312398412).

Almost surely, 2^{4441243321423} is an apocalyptic number.

4441243321423 is a deficient number, since it is larger than the sum of its proper divisors (6272225).

4441243321423 is an equidigital number, since it uses as much as digits as its factorization.

4441243321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272224.

The product of its digits is 221184, while the sum is 37.

Adding to 4441243321423 its reverse (3241233421444), we get a palindrome (7682476742867).

The spelling of 4441243321423 in words is "four trillion, four hundred forty-one billion, two hundred forty-three million, three hundred twenty-one thousand, four hundred twenty-three".