11333212109 has 4 divisors (see below), whose sum is σ = 11333480316. Its totient is φ = 11332943904.

The previous prime is 11333212081. The next prime is 11333212127. The reversal of 11333212109 is 90121233311.

11333212109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10685356900 + 647855209 = 103370^2 + 25453^2 .

It is a cyclic number.

It is not a de Polignac number, because 11333212109 - 2¹² = 11333208013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11333212909) 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 in 3 ways as a sum of consecutive naturals, for example, 55274 + ... + 160379.

It is an arithmetic number, because the mean of its divisors is an integer number (2833370079).

Almost surely, 2^11333212109 is an apocalyptic number.

It is an amenable number.

11333212109 is a deficient number, since it is larger than the sum of its proper divisors (268207).

11333212109 is an equidigital number, since it uses as much as digits as its factorization.

11333212109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268206.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 11333212109 in words is "eleven billion, three hundred thirty-three million, two hundred twelve thousand, one hundred nine".