42405241313 has 2 divisors, whose sum is σ = 42405241314. Its totient is φ = 42405241312.

The previous prime is 42405241301. The next prime is 42405241321. The reversal of 42405241313 is 31314250424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34736386129 + 7668855184 = 186377^2 + 87572^2 .

It is a cyclic number.

It is not a de Polignac number, because 42405241313 - 2⁴ = 42405241297 is a prime.

It is not a weakly prime, because it can be changed into another prime (42405241343) 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 as a sum of consecutive naturals, namely, 21202620656 + 21202620657.

It is an arithmetic number, because the mean of its divisors is an integer number (21202620657).

Almost surely, 2^42405241313 is an apocalyptic number.

It is an amenable number.

42405241313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42405241313 is an equidigital number, since it uses as much as digits as its factorization.

42405241313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 42405241313 its reverse (31314250424), we get a palindrome (73719491737).

The spelling of 42405241313 in words is "forty-two billion, four hundred five million, two hundred forty-one thousand, three hundred thirteen".