2001716131 has 2 divisors, whose sum is σ = 2001716132. Its totient is φ = 2001716130.

The previous prime is 2001716117. The next prime is 2001716147. The reversal of 2001716131 is 1316171002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001716131 - 2¹⁵ = 2001683363 is a prime.

It is a super-2 number, since 2×2001716131² = 8013734938211218322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2001716231) 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, 1000858065 + 1000858066.

It is an arithmetic number, because the mean of its divisors is an integer number (1000858066).

Almost surely, 2^2001716131 is an apocalyptic number.

2001716131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001716131 is an equidigital number, since it uses as much as digits as its factorization.

2001716131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2001716131 is about 44740.5423637220. The cubic root of 2001716131 is about 1260.2813118003.

Adding to 2001716131 its reverse (1316171002), we get a palindrome (3317887133).

The spelling of 2001716131 in words is "two billion, one million, seven hundred sixteen thousand, one hundred thirty-one".