4441321221423 has 4 divisors (see below), whose sum is σ = 5921761628568. Its totient is φ = 2960880814280.

The previous prime is 4441321221409. The next prime is 4441321221431. The reversal of 4441321221423 is 3241221231444.

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

It is a cyclic number.

It is not a de Polignac number, because 4441321221423 - 2⁵ = 4441321221391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4441321221223) 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, 740220203568 + ... + 740220203573.

It is an arithmetic number, because the mean of its divisors is an integer number (1480440407142).

Almost surely, 2^{4441321221423} is an apocalyptic number.

4441321221423 is a deficient number, since it is larger than the sum of its proper divisors (1480440407145).

4441321221423 is a wasteful number, since it uses less digits than its factorization.

4441321221423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480440407144.

The product of its digits is 36864, while the sum is 33.

Adding to 4441321221423 its reverse (3241221231444), we get a palindrome (7682542452867).

The spelling of 4441321221423 in words is "four trillion, four hundred forty-one billion, three hundred twenty-one million, two hundred twenty-one thousand, four hundred twenty-three".