136601603231 has 2 divisors, whose sum is σ = 136601603232. Its totient is φ = 136601603230.

The previous prime is 136601603227. The next prime is 136601603279. The reversal of 136601603231 is 132306106631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136601603231 - 2² = 136601603227 is a prime.

It is a super-2 number, since 2×136601603231² (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 (136601603291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68300801615 + 68300801616.

It is an arithmetic number, because the mean of its divisors is an integer number (68300801616).

Almost surely, 2^136601603231 is an apocalyptic number.

136601603231 is a deficient number, since it is larger than the sum of its proper divisors (1).

136601603231 is an equidigital number, since it uses as much as digits as its factorization.

136601603231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

Adding to 136601603231 its reverse (132306106631), we get a palindrome (268907709862).

The spelling of 136601603231 in words is "one hundred thirty-six billion, six hundred one million, six hundred three thousand, two hundred thirty-one".