243213533246311 has 16 divisors (see below), whose sum is σ = 244017437583808. Its totient is φ = 242411048352000.

The previous prime is 243213533246303. The next prime is 243213533246357. The reversal of 243213533246311 is 113642335312342.

243213533246311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243213533246311 - 2³ = 243213533246303 is a prime.

It is a super-2 number, since 2×243213533246311² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243213533246381) 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, 3580479430 + ... + 3580547356.

It is an arithmetic number, because the mean of its divisors is an integer number (15251089848988).

Almost surely, 2^{243213533246311} is an apocalyptic number.

243213533246311 is a deficient number, since it is larger than the sum of its proper divisors (803904337497).

243213533246311 is an equidigital number, since it uses as much as digits as its factorization.

243213533246311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78202.

The product of its digits is 933120, while the sum is 43.

Adding to 243213533246311 its reverse (113642335312342), we get a palindrome (356855868558653).

The spelling of 243213533246311 in words is "two hundred forty-three trillion, two hundred thirteen billion, five hundred thirty-three million, two hundred forty-six thousand, three hundred eleven".