36309806231 has 2 divisors, whose sum is σ = 36309806232. Its totient is φ = 36309806230.

The previous prime is 36309806213. The next prime is 36309806249. The reversal of 36309806231 is 13260890363.

Together with previous prime (36309806213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (36309806213) and next prime (36309806249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36309806231 is a prime.

It is a super-2 number, since 2×36309806231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36309806261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18154903115 + 18154903116.

It is an arithmetic number, because the mean of its divisors is an integer number (18154903116).

Almost surely, 2^36309806231 is an apocalyptic number.

36309806231 is a deficient number, since it is larger than the sum of its proper divisors (1).

36309806231 is an equidigital number, since it uses as much as digits as its factorization.

36309806231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 36309806231 in words is "thirty-six billion, three hundred nine million, eight hundred six thousand, two hundred thirty-one".