243343011 has 8 divisors (see below), whose sum is σ = 326333520. Its totient is φ = 161290592.

The previous prime is 243343007. The next prime is 243343019. The reversal of 243343011 is 110343342.

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 243343011 - 2² = 243343007 is a prime.

It is a super-2 number, since 2×243343011² = 118431642005092242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243343019) 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, 233916 + ... + 234953.

It is an arithmetic number, because the mean of its divisors is an integer number (40791690).

Almost surely, 2^243343011 is an apocalyptic number.

243343011 is a deficient number, since it is larger than the sum of its proper divisors (82990509).

243343011 is a wasteful number, since it uses less digits than its factorization.

243343011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469045.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243343011 is about 15599.4554712657. The cubic root of 243343011 is about 624.3186268256.

Adding to 243343011 its reverse (110343342), we get a palindrome (353686353).

The spelling of 243343011 in words is "two hundred forty-three million, three hundred forty-three thousand, eleven".