135531320143327 has 2 divisors, whose sum is σ = 135531320143328. Its totient is φ = 135531320143326.

The previous prime is 135531320143283. The next prime is 135531320143337. The reversal of 135531320143327 is 723341023135531.

It is a strong prime.

It is an emirp because it is prime and its reverse (723341023135531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135531320143327 - 2²⁷ = 135531185925599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135531320143337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67765660071663 + 67765660071664.

It is an arithmetic number, because the mean of its divisors is an integer number (67765660071664).

Almost surely, 2^{135531320143327} is an apocalyptic number.

135531320143327 is a deficient number, since it is larger than the sum of its proper divisors (1).

135531320143327 is an equidigital number, since it uses as much as digits as its factorization.

135531320143327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 43.

Adding to 135531320143327 its reverse (723341023135531), we get a palindrome (858872343278858).

The spelling of 135531320143327 in words is "one hundred thirty-five trillion, five hundred thirty-one billion, three hundred twenty million, one hundred forty-three thousand, three hundred twenty-seven".