136606231231 has 2 divisors, whose sum is σ = 136606231232. Its totient is φ = 136606231230.

The previous prime is 136606231207. The next prime is 136606231291. The reversal of 136606231231 is 132132606631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136606231231 - 2¹⁷ = 136606100159 is a prime.

It is a super-2 number, since 2×136606231231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136606231291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68303115615 + 68303115616.

It is an arithmetic number, because the mean of its divisors is an integer number (68303115616).

Almost surely, 2^136606231231 is an apocalyptic number.

136606231231 is a deficient number, since it is larger than the sum of its proper divisors (1).

136606231231 is an equidigital number, since it uses as much as digits as its factorization.

136606231231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

Adding to 136606231231 its reverse (132132606631), we get a palindrome (268738837862).

The spelling of 136606231231 in words is "one hundred thirty-six billion, six hundred six million, two hundred thirty-one thousand, two hundred thirty-one".