1009190914091 has 2 divisors, whose sum is σ = 1009190914092. Its totient is φ = 1009190914090.

The previous prime is 1009190914079. The next prime is 1009190914103. The reversal of 1009190914091 is 1904190919001.

It is a balanced prime because it is at equal distance from previous prime (1009190914079) and next prime (1009190914103).

It is a cyclic number.

It is not a de Polignac number, because 1009190914091 - 2¹⁰ = 1009190913067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1009190914001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504595457045 + 504595457046.

It is an arithmetic number, because the mean of its divisors is an integer number (504595457046).

Almost surely, 2^{1009190914091} is an apocalyptic number.

1009190914091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009190914091 is an equidigital number, since it uses as much as digits as its factorization.

1009190914091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 1009190914091 in words is "one trillion, nine billion, one hundred ninety million, nine hundred fourteen thousand, ninety-one".