136420235634323 has 2 divisors, whose sum is σ = 136420235634324. Its totient is φ = 136420235634322.

The previous prime is 136420235634269. The next prime is 136420235634401. The reversal of 136420235634323 is 323436532024631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136420235634323 - 2⁶ = 136420235634259 is a prime.

It is a super-2 number, since 2×136420235634323² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136420235634923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68210117817161 + 68210117817162.

It is an arithmetic number, because the mean of its divisors is an integer number (68210117817162).

Almost surely, 2^{136420235634323} is an apocalyptic number.

136420235634323 is a deficient number, since it is larger than the sum of its proper divisors (1).

136420235634323 is an equidigital number, since it uses as much as digits as its factorization.

136420235634323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 47.

Adding to 136420235634323 its reverse (323436532024631), we get a palindrome (459856767658954).

The spelling of 136420235634323 in words is "one hundred thirty-six trillion, four hundred twenty billion, two hundred thirty-five million, six hundred thirty-four thousand, three hundred twenty-three".