11002309 has 8 divisors (see below), whose sum is σ = 11352600. Its totient is φ = 10656000.

The previous prime is 11002301. The next prime is 11002331. The reversal of 11002309 is 90320011.

It can be written as a sum of positive squares in 4 ways, for example, as 1060900 + 9941409 = 1030^2 + 3153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11002309 - 2³ = 11002301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002292 and 11002301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5209 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (1419075).

Almost surely, 2^11002309 is an apocalyptic number.

It is an amenable number.

11002309 is a deficient number, since it is larger than the sum of its proper divisors (350291).

11002309 is a wasteful number, since it uses less digits than its factorization.

11002309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

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

The square root of 11002309 is about 3316.9728669376. The cubic root of 11002309 is about 222.4135690896.

It can be divided in two parts, 11002 and 309, that added together give a palindrome (11311).

The spelling of 11002309 in words is "eleven million, two thousand, three hundred nine".