7111207009 has 2 divisors, whose sum is σ = 7111207010. Its totient is φ = 7111207008.

The previous prime is 7111206967. The next prime is 7111207021. The reversal of 7111207009 is 9007021117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7094355984 + 16851025 = 84228^2 + 4105^2 .

It is a cyclic number.

It is not a de Polignac number, because 7111207009 - 2¹³ = 7111198817 is a prime.

It is not a weakly prime, because it can be changed into another prime (7111207069) 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, 3555603504 + 3555603505.

It is an arithmetic number, because the mean of its divisors is an integer number (3555603505).

Almost surely, 2^7111207009 is an apocalyptic number.

It is an amenable number.

7111207009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7111207009 is an equidigital number, since it uses as much as digits as its factorization.

7111207009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 7111207009 is about 84327.9728737742. The cubic root of 7111207009 is about 1923.0080713308.

The spelling of 7111207009 in words is "seven billion, one hundred eleven million, two hundred seven thousand, nine".