243421030341123 has 16 divisors (see below), whose sum is σ = 332566569910176. Its totient is φ = 158280209429760.

The previous prime is 243421030341109. The next prime is 243421030341127. The reversal of 243421030341123 is 321143030124342.

It is not a de Polignac number, because 243421030341123 - 2²¹ = 243421028243971 is a prime.

It is a super-3 number, since 3×243421030341123³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (243421030341127) 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, 264613540 + ... + 265531857.

It is an arithmetic number, because the mean of its divisors is an integer number (20785410619386).

Almost surely, 2^{243421030341123} is an apocalyptic number.

243421030341123 is a deficient number, since it is larger than the sum of its proper divisors (89145539569053).

243421030341123 is a wasteful number, since it uses less digits than its factorization.

243421030341123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530149174.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 243421030341123 its reverse (321143030124342), we get a palindrome (564564060465465).

The spelling of 243421030341123 in words is "two hundred forty-three trillion, four hundred twenty-one billion, thirty million, three hundred forty-one thousand, one hundred twenty-three".