243155050353 has 12 divisors (see below), whose sum is σ = 366494568960. Its totient is φ = 155055394296.

The previous prime is 243155050339. The next prime is 243155050379. The reversal of 243155050353 is 353050551342.

243155050353 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 550 + 50 + 3 + 53 = 666.

It is not a de Polignac number, because 243155050353 - 2⁵ = 243155050321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243155050153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587330833 + ... + 587331246.

It is an arithmetic number, because the mean of its divisors is an integer number (30541214080).

Almost surely, 2^243155050353 is an apocalyptic number.

243155050353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

243155050353 is a deficient number, since it is larger than the sum of its proper divisors (123339518607).

243155050353 is a wasteful number, since it uses less digits than its factorization.

243155050353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174662108 (or 1174662105 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 243155050353 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty thousand, three hundred fifty-three".