11020309 has 2 divisors, whose sum is σ = 11020310. Its totient is φ = 11020308.

The previous prime is 11020297. The next prime is 11020313. The reversal of 11020309 is 90302011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 3319684 = 2775^2 + 1822^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020309 - 2⁵ = 11020277 is a prime.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 11020292 and 11020301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510154 + 5510155.

It is an arithmetic number, because the mean of its divisors is an integer number (5510155).

Almost surely, 2^11020309 is an apocalyptic number.

It is an amenable number.

11020309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020309 is an equidigital number, since it uses as much as digits as its factorization.

11020309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 11020309 is about 3319.6850754251. The cubic root of 11020309 is about 222.5347940369.

The spelling of 11020309 in words is "eleven million, twenty thousand, three hundred nine".