11301232309 has 4 divisors (see below), whose sum is σ = 11307080716. Its totient is φ = 11295383904.

The previous prime is 11301232301. The next prime is 11301232331. The reversal of 11301232309 is 90323210311.

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 4465580625 + 6835651684 = 66825^2 + 82678^2 .

It is a cyclic number.

It is not a de Polignac number, because 11301232309 - 2³ = 11301232301 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 (11301232301) 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, 2921304 + ... + 2925169.

It is an arithmetic number, because the mean of its divisors is an integer number (2826770179).

Almost surely, 2^11301232309 is an apocalyptic number.

It is an amenable number.

11301232309 is a deficient number, since it is larger than the sum of its proper divisors (5848407).

11301232309 is an equidigital number, since it uses as much as digits as its factorization.

11301232309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848406.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 11301232309 in words is "eleven billion, three hundred one million, two hundred thirty-two thousand, three hundred nine".