1002110012191 has 2 divisors, whose sum is σ = 1002110012192. Its totient is φ = 1002110012190.

The previous prime is 1002110012153. The next prime is 1002110012203. The reversal of 1002110012191 is 1912100112001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002110012191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002110012131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501055006095 + 501055006096.

It is an arithmetic number, because the mean of its divisors is an integer number (501055006096).

Almost surely, 2^{1002110012191} is an apocalyptic number.

1002110012191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002110012191 is an equidigital number, since it uses as much as digits as its factorization.

1002110012191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 1002110012191 its reverse (1912100112001), we get a palindrome (2914210124192).

The spelling of 1002110012191 in words is "one trillion, two billion, one hundred ten million, twelve thousand, one hundred ninety-one".