11000002309 has 4 divisors (see below), whose sum is σ = 11003613100. Its totient is φ = 10996391520.

The previous prime is 11000002297. The next prime is 11000002319. The reversal of 11000002309 is 90320000011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90320000011 = 29 ⋅3114482759.

It can be written as a sum of positive squares in 2 ways, for example, as 1702800225 + 9297202084 = 41265^2 + 96422^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000002309 - 2²¹ = 10997905157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000002292 and 11000002301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000002319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800822 + ... + 1806919.

It is an arithmetic number, because the mean of its divisors is an integer number (2750903275).

Almost surely, 2^11000002309 is an apocalyptic number.

It is an amenable number.

11000002309 is a deficient number, since it is larger than the sum of its proper divisors (3610791).

11000002309 is an equidigital number, since it uses as much as digits as its factorization.

11000002309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610790.

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

The spelling of 11000002309 in words is "eleven billion, two thousand, three hundred nine".