1210500068891 has 2 divisors, whose sum is σ = 1210500068892. Its totient is φ = 1210500068890.

The previous prime is 1210500068867. The next prime is 1210500068893. The reversal of 1210500068891 is 1988600050121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210500068891 - 2³⁴ = 1193320199707 is a prime.

It is a super-3 number, since 3×1210500068891³ (a number of 37 digits) contains 333 as substring.

Together with 1210500068893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1210500068893) 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, 605250034445 + 605250034446.

It is an arithmetic number, because the mean of its divisors is an integer number (605250034446).

Almost surely, 2^{1210500068891} is an apocalyptic number.

1210500068891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210500068891 is an equidigital number, since it uses as much as digits as its factorization.

1210500068891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 41.

The spelling of 1210500068891 in words is "one trillion, two hundred ten billion, five hundred million, sixty-eight thousand, eight hundred ninety-one".