243105172451113 has 4 divisors (see below), whose sum is σ = 277834482801280. Its totient is φ = 208375862100948.

The previous prime is 243105172450997. The next prime is 243105172451131. The reversal of 243105172451113 is 311154271501342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243105172451113 - 2²⁹ = 243104635580201 is a prime.

It is a super-2 number, since 2×243105172451113² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243105172451413) 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, 17364655175073 + ... + 17364655175086.

It is an arithmetic number, because the mean of its divisors is an integer number (69458620700320).

Almost surely, 2^{243105172451113} is an apocalyptic number.

It is an amenable number.

243105172451113 is a deficient number, since it is larger than the sum of its proper divisors (34729310350167).

243105172451113 is an equidigital number, since it uses as much as digits as its factorization.

243105172451113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34729310350166.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 243105172451113 in words is "two hundred forty-three trillion, one hundred five billion, one hundred seventy-two million, four hundred fifty-one thousand, one hundred thirteen".