1306006811 has 2 divisors, whose sum is σ = 1306006812. Its totient is φ = 1306006810.

The previous prime is 1306006799. The next prime is 1306006841. The reversal of 1306006811 is 1186006031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1306006811 - 2²² = 1301812507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1306006841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653003405 + 653003406.

It is an arithmetic number, because the mean of its divisors is an integer number (653003406).

Almost surely, 2^1306006811 is an apocalyptic number.

1306006811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306006811 is an equidigital number, since it uses as much as digits as its factorization.

1306006811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1306006811 is about 36138.7162334248. The cubic root of 1306006811 is about 1093.0712726341.

The spelling of 1306006811 in words is "one billion, three hundred six million, six thousand, eight hundred eleven".