135636213023 has 2 divisors, whose sum is σ = 135636213024. Its totient is φ = 135636213022.

The previous prime is 135636213017. The next prime is 135636213061. The reversal of 135636213023 is 320312636531.

It is a weak prime.

It is an emirp because it is prime and its reverse (320312636531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135636213023 - 2¹⁴ = 135636196639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135636243023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67818106511 + 67818106512.

It is an arithmetic number, because the mean of its divisors is an integer number (67818106512).

Almost surely, 2^135636213023 is an apocalyptic number.

135636213023 is a deficient number, since it is larger than the sum of its proper divisors (1).

135636213023 is an equidigital number, since it uses as much as digits as its factorization.

135636213023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 35.

Adding to 135636213023 its reverse (320312636531), we get a palindrome (455948849554).

The spelling of 135636213023 in words is "one hundred thirty-five billion, six hundred thirty-six million, two hundred thirteen thousand, twenty-three".