11209057169 has 2 divisors, whose sum is σ = 11209057170. Its totient is φ = 11209057168.

The previous prime is 11209057129. The next prime is 11209057229. The reversal of 11209057169 is 96175090211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11207398225 + 1658944 = 105865^2 + 1288^2 .

It is an emirp because it is prime and its reverse (96175090211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11209057169 - 2²⁰ = 11208008593 is a prime.

It is a super-2 number, since 2×11209057169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11209057129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604528584 + 5604528585.

It is an arithmetic number, because the mean of its divisors is an integer number (5604528585).

Almost surely, 2^11209057169 is an apocalyptic number.

It is an amenable number.

11209057169 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209057169 is an equidigital number, since it uses as much as digits as its factorization.

11209057169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 41.

The spelling of 11209057169 in words is "eleven billion, two hundred nine million, fifty-seven thousand, one hundred sixty-nine".