42231412231 has 2 divisors, whose sum is σ = 42231412232. Its totient is φ = 42231412230.

The previous prime is 42231412229. The next prime is 42231412261. The reversal of 42231412231 is 13221413224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42231412231 - 2¹ = 42231412229 is a prime.

It is a super-2 number, since 2×42231412231² (a number of 22 digits) contains 22 as substring.

Together with 42231412229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42231412196 and 42231412205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42231412261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21115706115 + 21115706116.

It is an arithmetic number, because the mean of its divisors is an integer number (21115706116).

Almost surely, 2^42231412231 is an apocalyptic number.

42231412231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231412231 is an equidigital number, since it uses as much as digits as its factorization.

42231412231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

Adding to 42231412231 its reverse (13221413224), we get a palindrome (55452825455).

The spelling of 42231412231 in words is "forty-two billion, two hundred thirty-one million, four hundred twelve thousand, two hundred thirty-one".