1202102112191 has 2 divisors, whose sum is σ = 1202102112192. Its totient is φ = 1202102112190.

The previous prime is 1202102112181. The next prime is 1202102112223. The reversal of 1202102112191 is 1912112012021.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1912112012021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202102112191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202102112121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051056095 + 601051056096.

It is an arithmetic number, because the mean of its divisors is an integer number (601051056096).

Almost surely, 2^{1202102112191} is an apocalyptic number.

1202102112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202102112191 is an equidigital number, since it uses as much as digits as its factorization.

1202102112191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1202102112191 in words is "one trillion, two hundred two billion, one hundred two million, one hundred twelve thousand, one hundred ninety-one".