1000999969811 has 2 divisors, whose sum is σ = 1000999969812. Its totient is φ = 1000999969810.

The previous prime is 1000999969807. The next prime is 1000999969829. The reversal of 1000999969811 is 1189699990001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000999969811 - 2² = 1000999969807 is a prime.

It is a super-2 number, since 2×1000999969811² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1000999969511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500499984905 + 500499984906.

It is an arithmetic number, because the mean of its divisors is an integer number (500499984906).

Almost surely, 2^{1000999969811} is an apocalyptic number.

1000999969811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000999969811 is an equidigital number, since it uses as much as digits as its factorization.

1000999969811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2834352, while the sum is 62.

The spelling of 1000999969811 in words is "one trillion, nine hundred ninety-nine million, nine hundred sixty-nine thousand, eight hundred eleven".