136820835383213 has 2 divisors, whose sum is σ = 136820835383214. Its totient is φ = 136820835383212.

The previous prime is 136820835383203. The next prime is 136820835383257. The reversal of 136820835383213 is 312383538028631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104281717032964 + 32539118350249 = 10211842^2 + 5704307^2 .

It is a cyclic number.

It is not a de Polignac number, because 136820835383213 - 2⁶ = 136820835383149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136820835383203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68410417691606 + 68410417691607.

It is an arithmetic number, because the mean of its divisors is an integer number (68410417691607).

Almost surely, 2^{136820835383213} is an apocalyptic number.

It is an amenable number.

136820835383213 is a deficient number, since it is larger than the sum of its proper divisors (1).

136820835383213 is an equidigital number, since it uses as much as digits as its factorization.

136820835383213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 136820835383213 in words is "one hundred thirty-six trillion, eight hundred twenty billion, eight hundred thirty-five million, three hundred eighty-three thousand, two hundred thirteen".