2131005366171 has 32 divisors (see below), whose sum is σ = 3447289520640. Its totient is φ = 1290303237600.

The previous prime is 2131005366157. The next prime is 2131005366247. The reversal of 2131005366171 is 1716635001312.

2131005366171 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 0 + 0 + 5 + 36 + 617 + 1 = 666.

It is not a de Polignac number, because 2131005366171 - 2¹⁴ = 2131005349787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131005366151) 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 in 31 ways as a sum of consecutive naturals, for example, 3059220 + ... + 3690641.

It is an arithmetic number, because the mean of its divisors is an integer number (107727797520).

Almost surely, 2^{2131005366171} is an apocalyptic number.

2131005366171 is a deficient number, since it is larger than the sum of its proper divisors (1316284154469).

2131005366171 is a wasteful number, since it uses less digits than its factorization.

2131005366171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750944 (or 6750938 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 2131005366171 in words is "two trillion, one hundred thirty-one billion, five million, three hundred sixty-six thousand, one hundred seventy-one".