42442041231 has 16 divisors (see below), whose sum is σ = 62882490720. Its totient is φ = 28292267520.

The previous prime is 42442041143. The next prime is 42442041233. The reversal of 42442041231 is 13214024424.

42442041231 is a `hidden beast` number, since 4 + 2 + 4 + 420 + 4 + 1 + 231 = 666.

It is not a de Polignac number, because 42442041231 - 2¹⁴ = 42442024847 is a prime.

It is a super-2 number, since 2×42442041231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42442041195 and 42442041204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442041233) 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, 287151 + ... + 409071.

It is an arithmetic number, because the mean of its divisors is an integer number (3930155670).

Almost surely, 2^42442041231 is an apocalyptic number.

42442041231 is a deficient number, since it is larger than the sum of its proper divisors (20440449489).

42442041231 is a wasteful number, since it uses less digits than its factorization.

42442041231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134823 (or 134817 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 42442041231 its reverse (13214024424), we get a palindrome (55656065655).

The spelling of 42442041231 in words is "forty-two billion, four hundred forty-two million, forty-one thousand, two hundred thirty-one".