4021444243311 has 64 divisors (see below), whose sum is σ = 5966966046720. Its totient is φ = 2408780008800.

The previous prime is 4021444243307. The next prime is 4021444243367. The reversal of 4021444243311 is 1133424441204.

It is a happy number.

It is not a de Polignac number, because 4021444243311 - 2² = 4021444243307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444243301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123754776 + ... + 123787266.

It is an arithmetic number, because the mean of its divisors is an integer number (93233844480).

Almost surely, 2^{4021444243311} is an apocalyptic number.

4021444243311 is a deficient number, since it is larger than the sum of its proper divisors (1945521803409).

4021444243311 is a wasteful number, since it uses less digits than its factorization.

4021444243311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32889 (or 32867 counting only the distinct ones).

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

Adding to 4021444243311 its reverse (1133424441204), we get a palindrome (5154868684515).

The spelling of 4021444243311 in words is "four trillion, twenty-one billion, four hundred forty-four million, two hundred forty-three thousand, three hundred eleven".