42421142331 has 6 divisors (see below), whose sum is σ = 61274983380. Its totient is φ = 28280761548.

The previous prime is 42421142329. The next prime is 42421142399. The reversal of 42421142331 is 13324112424.

42421142331 is a `hidden beast` number, since 4 + 2 + 421 + 1 + 4 + 233 + 1 = 666.

It is not a de Polignac number, because 42421142331 - 2¹ = 42421142329 is a prime.

It is a super-2 number, since 2×42421142331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42421142295 and 42421142304.

It is not an unprimeable number, because it can be changed into a prime (42421142311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2356730121 + ... + 2356730138.

It is an arithmetic number, because the mean of its divisors is an integer number (10212497230).

Almost surely, 2^42421142331 is an apocalyptic number.

42421142331 is a deficient number, since it is larger than the sum of its proper divisors (18853841049).

42421142331 is a wasteful number, since it uses less digits than its factorization.

42421142331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713460265 (or 4713460262 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 42421142331 its reverse (13324112424), we get a palindrome (55745254755).

The spelling of 42421142331 in words is "forty-two billion, four hundred twenty-one million, one hundred forty-two thousand, three hundred thirty-one".