10000511009 has 2 divisors, whose sum is σ = 10000511010. Its totient is φ = 10000511008.

The previous prime is 10000510979. The next prime is 10000511063. The reversal of 10000511009 is 90011500001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5983486609 + 4017024400 = 77353^2 + 63380^2 .

It is an emirp because it is prime and its reverse (90011500001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10000511009 - 2³² = 5705543713 is a prime.

It is a super-2 number, since 2×10000511009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10000511089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000255504 + 5000255505.

It is an arithmetic number, because the mean of its divisors is an integer number (5000255505).

Almost surely, 2^10000511009 is an apocalyptic number.

It is an amenable number.

10000511009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000511009 is an equidigital number, since it uses as much as digits as its factorization.

10000511009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 17.

The spelling of 10000511009 in words is "ten billion, five hundred eleven thousand, nine".