1002112719991 has 2 divisors, whose sum is σ = 1002112719992. Its totient is φ = 1002112719990.

The previous prime is 1002112719977. The next prime is 1002112720013. The reversal of 1002112719991 is 1999172112001.

It is a weak prime.

It is an emirp because it is prime and its reverse (1999172112001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002112719991 - 2¹⁵ = 1002112687223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002112719961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501056359995 + 501056359996.

It is an arithmetic number, because the mean of its divisors is an integer number (501056359996).

Almost surely, 2^{1002112719991} is an apocalyptic number.

1002112719991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002112719991 is an equidigital number, since it uses as much as digits as its factorization.

1002112719991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 1002112719991 in words is "one trillion, two billion, one hundred twelve million, seven hundred nineteen thousand, nine hundred ninety-one".