1200110000191 has 2 divisors, whose sum is σ = 1200110000192. Its totient is φ = 1200110000190.

The previous prime is 1200110000153. The next prime is 1200110000209. The reversal of 1200110000191 is 1910000110021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1910000110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200110000191 - 2⁹ = 1200109999679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200110006191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600055000095 + 600055000096.

It is an arithmetic number, because the mean of its divisors is an integer number (600055000096).

Almost surely, 2^{1200110000191} is an apocalyptic number.

1200110000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200110000191 is an equidigital number, since it uses as much as digits as its factorization.

1200110000191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 1200110000191 in words is "one trillion, two hundred billion, one hundred ten million, one hundred ninety-one", and thus it is an aban number.