243113322105 has 16 divisors (see below), whose sum is σ = 432201461760. Its totient is φ = 129660438384.

The previous prime is 243113322091. The next prime is 243113322107. The reversal of 243113322105 is 501223311342.

243113322105 is a `hidden beast` number, since 2 + 4 + 311 + 332 + 2 + 10 + 5 = 666.

It is not a de Polignac number, because 243113322105 - 2¹² = 243113318009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (243113322107) 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, 900419577 + ... + 900419846.

It is an arithmetic number, because the mean of its divisors is an integer number (27012591360).

Almost surely, 2^243113322105 is an apocalyptic number.

It is an amenable number.

243113322105 is a deficient number, since it is larger than the sum of its proper divisors (189088139655).

243113322105 is a wasteful number, since it uses less digits than its factorization.

243113322105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800839437 (or 1800839431 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 243113322105 its reverse (501223311342), we get a palindrome (744336633447).

The spelling of 243113322105 in words is "two hundred forty-three billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred five".