11102102009 has 2 divisors, whose sum is σ = 11102102010. Its totient is φ = 11102102008.

The previous prime is 11102102003. The next prime is 11102102027. The reversal of 11102102009 is 90020120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6913423609 + 4188678400 = 83147^2 + 64720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102102009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11102102003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551051004 + 5551051005.

It is an arithmetic number, because the mean of its divisors is an integer number (5551051005).

Almost surely, 2^11102102009 is an apocalyptic number.

It is an amenable number.

11102102009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102102009 is an equidigital number, since it uses as much as digits as its factorization.

11102102009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 11102102009 in words is "eleven billion, one hundred two million, one hundred two thousand, nine".