42341913281 has 2 divisors, whose sum is σ = 42341913282. Its totient is φ = 42341913280.

The previous prime is 42341913247. The next prime is 42341913283. The reversal of 42341913281 is 18231914324.

42341913281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28009034881 + 14332878400 = 167359^2 + 119720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42341913281 is a prime.

It is a super-2 number, since 2×42341913281² (a number of 22 digits) contains 22 as substring.

Together with 42341913283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42341913283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170956640 + 21170956641.

It is an arithmetic number, because the mean of its divisors is an integer number (21170956641).

Almost surely, 2^42341913281 is an apocalyptic number.

It is an amenable number.

42341913281 is a deficient number, since it is larger than the sum of its proper divisors (1).

42341913281 is an equidigital number, since it uses as much as digits as its factorization.

42341913281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The spelling of 42341913281 in words is "forty-two billion, three hundred forty-one million, nine hundred thirteen thousand, two hundred eighty-one".