1210148389187 has 2 divisors, whose sum is σ = 1210148389188. Its totient is φ = 1210148389186.

The previous prime is 1210148389183. The next prime is 1210148389189. The reversal of 1210148389187 is 7819838410121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210148389187 - 2² = 1210148389183 is a prime.

Together with 1210148389189, 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 (1210148389183) 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, 605074194593 + 605074194594.

It is an arithmetic number, because the mean of its divisors is an integer number (605074194594).

Almost surely, 2^{1210148389187} is an apocalyptic number.

1210148389187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210148389187 is an equidigital number, since it uses as much as digits as its factorization.

1210148389187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 53.

The spelling of 1210148389187 in words is "one trillion, two hundred ten billion, one hundred forty-eight million, three hundred eighty-nine thousand, one hundred eighty-seven".