42345340441 has 2 divisors, whose sum is σ = 42345340442. Its totient is φ = 42345340440.

The previous prime is 42345340439. The next prime is 42345340447. The reversal of 42345340441 is 14404354324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25630729216 + 16714611225 = 160096^2 + 129285^2 .

It is a cyclic number.

It is not a de Polignac number, because 42345340441 - 2¹ = 42345340439 is a prime.

Together with 42345340439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42345340397 and 42345340406.

It is not a weakly prime, because it can be changed into another prime (42345340447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172670220 + 21172670221.

It is an arithmetic number, because the mean of its divisors is an integer number (21172670221).

Almost surely, 2^42345340441 is an apocalyptic number.

It is an amenable number.

42345340441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42345340441 is an equidigital number, since it uses as much as digits as its factorization.

42345340441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 42345340441 its reverse (14404354324), we get a palindrome (56749694765).

The spelling of 42345340441 in words is "forty-two billion, three hundred forty-five million, three hundred forty thousand, four hundred forty-one".