10240090909 has 2 divisors, whose sum is σ = 10240090910. Its totient is φ = 10240090908.

The previous prime is 10240090891. The next prime is 10240090937. The reversal of 10240090909 is 90909004201.

10240090909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8699292900 + 1540798009 = 93270^2 + 39253^2 .

It is a cyclic number.

It is not a de Polignac number, because 10240090909 - 2⁵ = 10240090877 is a prime.

10240090909 is a modest number, since divided by 90909 gives 10240 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10240090969) 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, 5120045454 + 5120045455.

It is an arithmetic number, because the mean of its divisors is an integer number (5120045455).

Almost surely, 2^10240090909 is an apocalyptic number.

It is an amenable number.

10240090909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10240090909 is an equidigital number, since it uses as much as digits as its factorization.

10240090909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 10240090909 in words is "ten billion, two hundred forty million, ninety thousand, nine hundred nine".