4021444330231 has 4 divisors (see below), whose sum is σ = 4233099295000. Its totient is φ = 3809789365464.

The previous prime is 4021444330223. The next prime is 4021444330261. The reversal of 4021444330231 is 1320334441204.

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 4021444330231 - 2³ = 4021444330223 is a prime.

It is a super-2 number, since 2×4021444330231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021444330193 and 4021444330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444330261) 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, 105827482356 + ... + 105827482393.

It is an arithmetic number, because the mean of its divisors is an integer number (1058274823750).

Almost surely, 2^{4021444330231} is an apocalyptic number.

4021444330231 is a deficient number, since it is larger than the sum of its proper divisors (211654964769).

4021444330231 is a wasteful number, since it uses less digits than its factorization.

4021444330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211654964768.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4021444330231 its reverse (1320334441204), we get a palindrome (5341778771435).

The spelling of 4021444330231 in words is "four trillion, twenty-one billion, four hundred forty-four million, three hundred thirty thousand, two hundred thirty-one".