1000100211091 has 2 divisors, whose sum is σ = 1000100211092. Its totient is φ = 1000100211090.

The previous prime is 1000100211067. The next prime is 1000100211107. The reversal of 1000100211091 is 1901120010001.

It is an a-pointer prime, because the next prime (1000100211107) can be obtained adding 1000100211091 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000100211091 - 2²⁹ = 999563340179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000100211001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500050105545 + 500050105546.

It is an arithmetic number, because the mean of its divisors is an integer number (500050105546).

Almost surely, 2^{1000100211091} is an apocalyptic number.

1000100211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000100211091 is an equidigital number, since it uses as much as digits as its factorization.

1000100211091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1000100211091 its reverse (1901120010001), we get a palindrome (2901220221092).

The spelling of 1000100211091 in words is "one trillion, one hundred million, two hundred eleven thousand, ninety-one".