171200331023 has 2 divisors, whose sum is σ = 171200331024. Its totient is φ = 171200331022.

The previous prime is 171200331017. The next prime is 171200331031. The reversal of 171200331023 is 320133002171.

It is a weak prime.

It is an emirp because it is prime and its reverse (320133002171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171200331023 - 2⁸ = 171200330767 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171200331023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171200331823) 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, 85600165511 + 85600165512.

It is an arithmetic number, because the mean of its divisors is an integer number (85600165512).

Almost surely, 2^171200331023 is an apocalyptic number.

171200331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

171200331023 is an equidigital number, since it uses as much as digits as its factorization.

171200331023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 171200331023 its reverse (320133002171), we get a palindrome (491333333194).

The spelling of 171200331023 in words is "one hundred seventy-one billion, two hundred million, three hundred thirty-one thousand, twenty-three".