243112045155 has 64 divisors (see below), whose sum is σ = 462063909888. Its totient is φ = 106830282240.

The previous prime is 243112045151. The next prime is 243112045177. The reversal of 243112045155 is 551540211342.

It is not a de Polignac number, because 243112045155 - 2² = 243112045151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243112045151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54516 + ... + 699425.

It is an arithmetic number, because the mean of its divisors is an integer number (7219748592).

Almost surely, 2^243112045155 is an apocalyptic number.

243112045155 is a deficient number, since it is larger than the sum of its proper divisors (218951864733).

243112045155 is a wasteful number, since it uses less digits than its factorization.

243112045155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754076.

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

Adding to 243112045155 its reverse (551540211342), we get a palindrome (794652256497).

The spelling of 243112045155 in words is "two hundred forty-three billion, one hundred twelve million, forty-five thousand, one hundred fifty-five".