243380011 has 6 divisors (see below), whose sum is σ = 283115580. Its totient is φ = 208611396.

The previous prime is 243380009. The next prime is 243380047. The reversal of 243380011 is 110083342.

It is not a de Polignac number, because 243380011 - 2¹ = 243380009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243381011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2483421 + ... + 2483518.

It is an arithmetic number, because the mean of its divisors is an integer number (47185930).

Almost surely, 2^243380011 is an apocalyptic number.

243380011 is a deficient number, since it is larger than the sum of its proper divisors (39735569).

243380011 is an equidigital number, since it uses as much as digits as its factorization.

243380011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966953 (or 4966946 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 243380011 is about 15600.6413650209. The cubic root of 243380011 is about 624.3502675104.

The spelling of 243380011 in words is "two hundred forty-three million, three hundred eighty thousand, eleven".