243115030191 has 8 divisors (see below), whose sum is σ = 353621862144. Its totient is φ = 147342442520.

The previous prime is 243115030177. The next prime is 243115030229. The reversal of 243115030191 is 191030511342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243115030191 - 2⁶ = 243115030127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243115030111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3683561031 + ... + 3683561096.

It is an arithmetic number, because the mean of its divisors is an integer number (44202732768).

Almost surely, 2^243115030191 is an apocalyptic number.

243115030191 is a deficient number, since it is larger than the sum of its proper divisors (110506831953).

243115030191 is a wasteful number, since it uses less digits than its factorization.

243115030191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367122141.

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 243115030191 in words is "two hundred forty-three billion, one hundred fifteen million, thirty thousand, one hundred ninety-one".