243005512013 has 16 divisors (see below), whose sum is σ = 267201566016. Its totient is φ = 219164624640.

The previous prime is 243005512007. The next prime is 243005512031. The reversal of 243005512013 is 310215500342.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 243005512013 - 2¹⁰ = 243005510989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243005512213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001045 + ... + 1219877.

It is an arithmetic number, because the mean of its divisors is an integer number (16700097876).

Almost surely, 2^243005512013 is an apocalyptic number.

It is an amenable number.

243005512013 is a deficient number, since it is larger than the sum of its proper divisors (24196054003).

243005512013 is a wasteful number, since it uses less digits than its factorization.

243005512013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219644.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 243005512013 in words is "two hundred forty-three billion, five million, five hundred twelve thousand, thirteen".