1420441444223 has 4 divisors (see below), whose sum is σ = 1420443828720. Its totient is φ = 1420439059728.

The previous prime is 1420441444181. The next prime is 1420441444271. The reversal of 1420441444223 is 3224441440241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420441444223 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 (1420441444273) 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, 548363 + ... + 1772451.

It is an arithmetic number, because the mean of its divisors is an integer number (355110957180).

Almost surely, 2^{1420441444223} is an apocalyptic number.

1420441444223 is a deficient number, since it is larger than the sum of its proper divisors (2384497).

1420441444223 is a wasteful number, since it uses less digits than its factorization.

1420441444223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384496.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 1420441444223 its reverse (3224441440241), we get a palindrome (4644882884464).

The spelling of 1420441444223 in words is "one trillion, four hundred twenty billion, four hundred forty-one million, four hundred forty-four thousand, two hundred twenty-three".