243155725211 has 12 divisors (see below), whose sum is σ = 282867557040. Its totient is φ = 208409659920.

The previous prime is 243155725207. The next prime is 243155725223. The reversal of 243155725211 is 112527551342.

It is not a de Polignac number, because 243155725211 - 2² = 243155725207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243155727211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099706 + ... + 1302176.

It is an arithmetic number, because the mean of its divisors is an integer number (23572296420).

Almost surely, 2^243155725211 is an apocalyptic number.

243155725211 is a deficient number, since it is larger than the sum of its proper divisors (39711831829).

243155725211 is a wasteful number, since it uses less digits than its factorization.

243155725211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226994 (or 226987 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The spelling of 243155725211 in words is "two hundred forty-three billion, one hundred fifty-five million, seven hundred twenty-five thousand, two hundred eleven".