243013011 has 16 divisors (see below), whose sum is σ = 354909600. Its totient is φ = 147219968.

The previous prime is 243012989. The next prime is 243013013. The reversal of 243013011 is 110310342.

It is a cyclic number.

It is not a de Polignac number, because 243013011 - 2⁷ = 243012883 is a prime.

It is a super-2 number, since 2×243013011² = 118110647030572242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243013013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80676 + ... + 83633.

It is an arithmetic number, because the mean of its divisors is an integer number (22181850).

Almost surely, 2^243013011 is an apocalyptic number.

243013011 is a deficient number, since it is larger than the sum of its proper divisors (111896589).

243013011 is a wasteful number, since it uses less digits than its factorization.

243013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164358.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 243013011 is about 15588.8745905534. The cubic root of 243013011 is about 624.0362841533.

Adding to 243013011 its reverse (110310342), we get a palindrome (353323353).

The spelling of 243013011 in words is "two hundred forty-three million, thirteen thousand, eleven".