4021441321123 has 4 divisors (see below), whose sum is σ = 4021759309680. Its totient is φ = 4021123332568.

The previous prime is 4021441321111. The next prime is 4021441321133. The reversal of 4021441321123 is 3211231441204.

It is a happy number.

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 4021441321123 - 2¹⁷ = 4021441190051 is a prime.

It is a super-2 number, since 2×4021441321123² (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 = 4021441321091 and 4021441321100.

It is not an unprimeable number, because it can be changed into a prime (4021441321133) 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, 158975308 + ... + 159000601.

It is an arithmetic number, because the mean of its divisors is an integer number (1005439827420).

Almost surely, 2^{4021441321123} is an apocalyptic number.

4021441321123 is a deficient number, since it is larger than the sum of its proper divisors (317988557).

4021441321123 is a wasteful number, since it uses less digits than its factorization.

4021441321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317988556.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 4021441321123 its reverse (3211231441204), we get a palindrome (7232672762327).

The spelling of 4021441321123 in words is "four trillion, twenty-one billion, four hundred forty-one million, three hundred twenty-one thousand, one hundred twenty-three".