243013344213 has 16 divisors (see below), whose sum is σ = 328900041216. Its totient is φ = 159568450800.

The previous prime is 243013344139. The next prime is 243013344221. The reversal of 243013344213 is 312443310342.

It is a happy number.

It is not a de Polignac number, because 243013344213 - 2⁸ = 243013343957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243013344313) 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, 1416520 + ... + 1578782.

It is an arithmetic number, because the mean of its divisors is an integer number (20556252576).

Almost surely, 2^243013344213 is an apocalyptic number.

It is an amenable number.

243013344213 is a deficient number, since it is larger than the sum of its proper divisors (85886697003).

243013344213 is a wasteful number, since it uses less digits than its factorization.

243013344213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169784.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 243013344213 its reverse (312443310342), we get a palindrome (555456654555).

The spelling of 243013344213 in words is "two hundred forty-three billion, thirteen million, three hundred forty-four thousand, two hundred thirteen".