243120203213 has 8 divisors (see below), whose sum is σ = 244040407200. Its totient is φ = 242200121328.

The previous prime is 243120203201. The next prime is 243120203273. The reversal of 243120203213 is 312302021342.

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 243120203213 - 2¹⁸ = 243119941069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120203273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6960170 + ... + 6995012.

It is an arithmetic number, because the mean of its divisors is an integer number (30505050900).

Almost surely, 2^243120203213 is an apocalyptic number.

It is an amenable number.

243120203213 is a deficient number, since it is larger than the sum of its proper divisors (920203987).

243120203213 is a wasteful number, since it uses less digits than its factorization.

243120203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61051.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243120203213 its reverse (312302021342), we get a palindrome (555422224555).

The spelling of 243120203213 in words is "two hundred forty-three billion, one hundred twenty million, two hundred three thousand, two hundred thirteen".