243155051241 has 16 divisors (see below), whose sum is σ = 329844596928. Its totient is φ = 159289646400.

The previous prime is 243155051233. The next prime is 243155051297. The reversal of 243155051241 is 142150551342.

It is not a de Polignac number, because 243155051241 - 2³ = 243155051233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243155051141) 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, 463851 + ... + 837536.

It is an arithmetic number, because the mean of its divisors is an integer number (20615287308).

Almost surely, 2^243155051241 is an apocalyptic number.

It is an amenable number.

243155051241 is a deficient number, since it is larger than the sum of its proper divisors (86689545687).

243155051241 is a wasteful number, since it uses less digits than its factorization.

243155051241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302472.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 243155051241 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty-one thousand, two hundred forty-one".