42012434371 has 2 divisors, whose sum is σ = 42012434372. Its totient is φ = 42012434370.

The previous prime is 42012434369. The next prime is 42012434419. The reversal of 42012434371 is 17343421024.

42012434371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42012434371 - 2¹ = 42012434369 is a prime.

Together with 42012434369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42012434171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21006217185 + 21006217186.

It is an arithmetic number, because the mean of its divisors is an integer number (21006217186).

Almost surely, 2^42012434371 is an apocalyptic number.

42012434371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42012434371 is an equidigital number, since it uses as much as digits as its factorization.

42012434371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 42012434371 its reverse (17343421024), we get a palindrome (59355855395).

The spelling of 42012434371 in words is "forty-two billion, twelve million, four hundred thirty-four thousand, three hundred seventy-one".