1000969811 has 2 divisors, whose sum is σ = 1000969812. Its totient is φ = 1000969810.

The previous prime is 1000969807. The next prime is 1000969841. The reversal of 1000969811 is 1189690001.

It is a weak prime.

It is an emirp because it is prime and its reverse (1189690001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000969811 - 2² = 1000969807 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000969841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500484905 + 500484906.

It is an arithmetic number, because the mean of its divisors is an integer number (500484906).

Almost surely, 2^1000969811 is an apocalyptic number.

1000969811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000969811 is an equidigital number, since it uses as much as digits as its factorization.

1000969811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 1000969811 is about 31638.1069440003. The cubic root of 1000969811 is about 1000.3231658859.

The spelling of 1000969811 in words is "one billion, nine hundred sixty-nine thousand, eight hundred eleven".