442041220231 has 16 divisors (see below), whose sum is σ = 491467610368. Its totient is φ = 394821734400.

The previous prime is 442041220219. The next prime is 442041220279. The reversal of 442041220231 is 132022140244.

It is a cyclic number.

It is not a de Polignac number, because 442041220231 - 2¹⁷ = 442041089159 is a prime.

It is a super-2 number, since 2×442041220231² (a number of 24 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 = 442041220196 and 442041220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442041220031) 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, 3048775 + ... + 3190471.

It is an arithmetic number, because the mean of its divisors is an integer number (30716725648).

Almost surely, 2^442041220231 is an apocalyptic number.

442041220231 is a deficient number, since it is larger than the sum of its proper divisors (49426390137).

442041220231 is a wasteful number, since it uses less digits than its factorization.

442041220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149482.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 442041220231 its reverse (132022140244), we get a palindrome (574063360475).

The spelling of 442041220231 in words is "four hundred forty-two billion, forty-one million, two hundred twenty thousand, two hundred thirty-one".