243234130211 has 4 divisors (see below), whose sum is σ = 243235316424. Its totient is φ = 243232944000.

The previous prime is 243234130199. The next prime is 243234130219. The reversal of 243234130211 is 112031432342.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 243234130211 - 2¹⁸ = 243233868067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243234130219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197630 + ... + 724931.

It is an arithmetic number, because the mean of its divisors is an integer number (60808829106).

Almost surely, 2^243234130211 is an apocalyptic number.

243234130211 is a deficient number, since it is larger than the sum of its proper divisors (1186213).

243234130211 is an equidigital number, since it uses as much as digits as its factorization.

243234130211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186212.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243234130211 its reverse (112031432342), we get a palindrome (355265562553).

The spelling of 243234130211 in words is "two hundred forty-three billion, two hundred thirty-four million, one hundred thirty thousand, two hundred eleven".