4021444431313 has 16 divisors (see below), whose sum is σ = 4146641740800. Its totient is φ = 3898174896000.

The previous prime is 4021444431281. The next prime is 4021444431353. The reversal of 4021444431313 is 3131344441204.

It is a cyclic number.

It is not a de Polignac number, because 4021444431313 - 2⁵ = 4021444431281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021444431353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17800563 + ... + 18025063.

It is an arithmetic number, because the mean of its divisors is an integer number (259165108800).

Almost surely, 2^{4021444431313} is an apocalyptic number.

It is an amenable number.

4021444431313 is a deficient number, since it is larger than the sum of its proper divisors (125197309487).

4021444431313 is a wasteful number, since it uses less digits than its factorization.

4021444431313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228792.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 4021444431313 its reverse (3131344441204), we get a palindrome (7152788872517).

The spelling of 4021444431313 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirty-one thousand, three hundred thirteen".