243134464105 has 16 divisors (see below), whose sum is σ = 314420016960. Its totient is φ = 179422319808.

The previous prime is 243134464103. The next prime is 243134464141. The reversal of 243134464105 is 501464431342.

It is a cyclic number.

It is not a de Polignac number, because 243134464105 - 2¹ = 243134464103 is a prime.

It is a super-2 number, since 2×243134464105² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243134464103) 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, 1187047 + ... + 1376716.

It is an arithmetic number, because the mean of its divisors is an integer number (19651251060).

Almost surely, 2^243134464105 is an apocalyptic number.

It is an amenable number.

243134464105 is a deficient number, since it is larger than the sum of its proper divisors (71285552855).

243134464105 is a wasteful number, since it uses less digits than its factorization.

243134464105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565240.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 243134464105 its reverse (501464431342), we get a palindrome (744598895447).

The spelling of 243134464105 in words is "two hundred forty-three billion, one hundred thirty-four million, four hundred sixty-four thousand, one hundred five".