12135135804713 has 2 divisors, whose sum is σ = 12135135804714. Its totient is φ = 12135135804712.

The previous prime is 12135135804709. The next prime is 12135135804739. The reversal of 12135135804713 is 31740853153121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11680208487424 + 454927317289 = 3417632^2 + 674483^2 .

It is a cyclic number.

It is not a de Polignac number, because 12135135804713 - 2² = 12135135804709 is a prime.

It is not a weakly prime, because it can be changed into another prime (12135135804313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067567902356 + 6067567902357.

It is an arithmetic number, because the mean of its divisors is an integer number (6067567902357).

Almost surely, 2^{12135135804713} is an apocalyptic number.

It is an amenable number.

12135135804713 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135135804713 is an equidigital number, since it uses as much as digits as its factorization.

12135135804713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

Adding to 12135135804713 its reverse (31740853153121), we get a palindrome (43875988957834).

The spelling of 12135135804713 in words is "twelve trillion, one hundred thirty-five billion, one hundred thirty-five million, eight hundred four thousand, seven hundred thirteen".