231326808907 has 2 divisors, whose sum is σ = 231326808908. Its totient is φ = 231326808906.

The previous prime is 231326808749. The next prime is 231326808919. The reversal of 231326808907 is 709808623132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231326808907 is a prime.

It is not a weakly prime, because it can be changed into another prime (231326808997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115663404453 + 115663404454.

It is an arithmetic number, because the mean of its divisors is an integer number (115663404454).

Almost surely, 2^231326808907 is an apocalyptic number.

231326808907 is a deficient number, since it is larger than the sum of its proper divisors (1).

231326808907 is an equidigital number, since it uses as much as digits as its factorization.

231326808907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 231326808907 in words is "two hundred thirty-one billion, three hundred twenty-six million, eight hundred eight thousand, nine hundred seven".