4021444340303 has 4 divisors (see below), whose sum is σ = 4330786212648. Its totient is φ = 3712102467960.

The previous prime is 4021444340299. The next prime is 4021444340311. The reversal of 4021444340303 is 3030434441204.

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 4021444340303 - 2² = 4021444340299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021444340303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444340203) 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, 154670936153 + ... + 154670936178.

It is an arithmetic number, because the mean of its divisors is an integer number (1082696553162).

Almost surely, 2^{4021444340303} is an apocalyptic number.

4021444340303 is a deficient number, since it is larger than the sum of its proper divisors (309341872345).

4021444340303 is a wasteful number, since it uses less digits than its factorization.

4021444340303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309341872344.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 4021444340303 its reverse (3030434441204), we get a palindrome (7051878781507).

The spelling of 4021444340303 in words is "four trillion, twenty-one billion, four hundred forty-four million, three hundred forty thousand, three hundred three".