100031131171 has 2 divisors, whose sum is σ = 100031131172. Its totient is φ = 100031131170.

The previous prime is 100031131169. The next prime is 100031131231. The reversal of 100031131171 is 171131130001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100031131171 - 2¹ = 100031131169 is a prime.

Together with 100031131169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100031131471) 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, 50015565585 + 50015565586.

It is an arithmetic number, because the mean of its divisors is an integer number (50015565586).

Almost surely, 2^100031131171 is an apocalyptic number.

100031131171 is a deficient number, since it is larger than the sum of its proper divisors (1).

100031131171 is an equidigital number, since it uses as much as digits as its factorization.

100031131171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 19.

Adding to 100031131171 its reverse (171131130001), we get a palindrome (271162261172).

The spelling of 100031131171 in words is "one hundred billion, thirty-one million, one hundred thirty-one thousand, one hundred seventy-one".