42421112331 has 24 divisors (see below), whose sum is σ = 62251145136. Its totient is φ = 25677325440.

The previous prime is 42421112329. The next prime is 42421112351. The reversal of 42421112331 is 13321112424.

It is not a de Polignac number, because 42421112331 - 2¹ = 42421112329 is a prime.

It is a super-2 number, since 2×42421112331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42421112351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654900 + ... + 716753.

It is an arithmetic number, because the mean of its divisors is an integer number (2593797714).

Almost surely, 2^42421112331 is an apocalyptic number.

42421112331 is a deficient number, since it is larger than the sum of its proper divisors (19830032805).

42421112331 is a wasteful number, since it uses less digits than its factorization.

42421112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371743 (or 1371730 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 42421112331 its reverse (13321112424), we get a palindrome (55742224755).

The spelling of 42421112331 in words is "forty-two billion, four hundred twenty-one million, one hundred twelve thousand, three hundred thirty-one".