243204301109 has 16 divisors (see below), whose sum is σ = 305397173760. Its totient is φ = 188146456560.

The previous prime is 243204301099. The next prime is 243204301111. The reversal of 243204301109 is 901103402342.

It is a cyclic number.

It is not a de Polignac number, because 243204301109 - 2³² = 238909333813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243204301169) 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, 11350799 + ... + 11372204.

It is an arithmetic number, because the mean of its divisors is an integer number (19087323360).

Almost surely, 2^243204301109 is an apocalyptic number.

It is an amenable number.

243204301109 is a deficient number, since it is larger than the sum of its proper divisors (62192872651).

243204301109 is a wasteful number, since it uses less digits than its factorization.

243204301109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723160.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 243204301109 in words is "two hundred forty-three billion, two hundred four million, three hundred one thousand, one hundred nine".