4431021443242 has 16 divisors (see below), whose sum is σ = 6650055122400. Its totient is φ = 2214336631248.

The previous prime is 4431021443209. The next prime is 4431021443273. The reversal of 4431021443242 is 2423441201344.

It is a super-3 number, since 3×4431021443242³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4431021443198 and 4431021443207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42869248 + ... + 42972484.

It is an arithmetic number, because the mean of its divisors is an integer number (415628445150).

Almost surely, 2^{4431021443242} is an apocalyptic number.

4431021443242 is a deficient number, since it is larger than the sum of its proper divisors (2219033679158).

4431021443242 is a wasteful number, since it uses less digits than its factorization.

4431021443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114405.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 4431021443242 its reverse (2423441201344), we get a palindrome (6854462644586).

The spelling of 4431021443242 in words is "four trillion, four hundred thirty-one billion, twenty-one million, four hundred forty-three thousand, two hundred forty-two".