2101315545187 has 2 divisors, whose sum is σ = 2101315545188. Its totient is φ = 2101315545186.

The previous prime is 2101315545041. The next prime is 2101315545227. The reversal of 2101315545187 is 7815455131012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101315545187 - 2¹¹ = 2101315543139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101315545487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050657772593 + 1050657772594.

It is an arithmetic number, because the mean of its divisors is an integer number (1050657772594).

Almost surely, 2^{2101315545187} is an apocalyptic number.

2101315545187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101315545187 is an equidigital number, since it uses as much as digits as its factorization.

2101315545187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 43.

The spelling of 2101315545187 in words is "two trillion, one hundred one billion, three hundred fifteen million, five hundred forty-five thousand, one hundred eighty-seven".