1000110119891 has 2 divisors, whose sum is σ = 1000110119892. Its totient is φ = 1000110119890.

The previous prime is 1000110119881. The next prime is 1000110119903. The reversal of 1000110119891 is 1989110110001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000110119891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000110119821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055059945 + 500055059946.

It is an arithmetic number, because the mean of its divisors is an integer number (500055059946).

Almost surely, 2^{1000110119891} is an apocalyptic number.

1000110119891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000110119891 is an equidigital number, since it uses as much as digits as its factorization.

1000110119891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 32.

Adding to 1000110119891 its reverse (1989110110001), we get a palindrome (2989220229892).

The spelling of 1000110119891 in words is "one trillion, one hundred ten million, one hundred nineteen thousand, eight hundred ninety-one".