11020203109 has 2 divisors, whose sum is σ = 11020203110. Its totient is φ = 11020203108.

The previous prime is 11020203107. The next prime is 11020203121. The reversal of 11020203109 is 90130202011.

11020203109 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., 10915652484 + 104550625 = 104478^2 + 10225^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020203109 - 2¹ = 11020203107 is a prime.

It is a super-2 number, since 2×11020203109² (a number of 21 digits) contains 22 as substring.

Together with 11020203107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020203107) 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, 5510101554 + 5510101555.

It is an arithmetic number, because the mean of its divisors is an integer number (5510101555).

Almost surely, 2^11020203109 is an apocalyptic number.

It is an amenable number.

11020203109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020203109 is an equidigital number, since it uses as much as digits as its factorization.

11020203109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 11020203109 in words is "eleven billion, twenty million, two hundred three thousand, one hundred nine".