42135015340241 has 2 divisors, whose sum is σ = 42135015340242. Its totient is φ = 42135015340240.

The previous prime is 42135015340219. The next prime is 42135015340321. The reversal of 42135015340241 is 14204351053124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40701018670225 + 1433996670016 = 6379735^2 + 1197496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42135015340241 is a prime.

It is not a weakly prime, because it can be changed into another prime (42135015340141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21067507670120 + 21067507670121.

It is an arithmetic number, because the mean of its divisors is an integer number (21067507670121).

Almost surely, 2^{42135015340241} is an apocalyptic number.

It is an amenable number.

42135015340241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42135015340241 is an equidigital number, since it uses as much as digits as its factorization.

42135015340241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 42135015340241 its reverse (14204351053124), we get a palindrome (56339366393365).

The spelling of 42135015340241 in words is "forty-two trillion, one hundred thirty-five billion, fifteen million, three hundred forty thousand, two hundred forty-one".