1001111111069 has 2 divisors, whose sum is σ = 1001111111070. Its totient is φ = 1001111111068.

The previous prime is 1001111111029. The next prime is 1001111111089. The reversal of 1001111111069 is 9601111111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 788211922969 + 212899188100 = 887813^2 + 461410^2 .

It is an emirp because it is prime and its reverse (9601111111001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001111111069 - 2²⁰ = 1001110062493 is a prime.

It is a super-2 number, since 2×1001111111069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001111111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500555555534 + 500555555535.

It is an arithmetic number, because the mean of its divisors is an integer number (500555555535).

Almost surely, 2^{1001111111069} is an apocalyptic number.

It is an amenable number.

1001111111069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001111111069 is an equidigital number, since it uses as much as digits as its factorization.

1001111111069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 23.

The spelling of 1001111111069 in words is "one trillion, one billion, one hundred eleven million, one hundred eleven thousand, sixty-nine".