243105201105 has 16 divisors (see below), whose sum is σ = 418888962240. Its totient is φ = 119682560448.

The previous prime is 243105201041. The next prime is 243105201121. The reversal of 243105201105 is 501102501342.

It is a happy number.

It is not a de Polignac number, because 243105201105 - 2⁶ = 243105201041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623346475 + ... + 623346864.

It is an arithmetic number, because the mean of its divisors is an integer number (26180560140).

Almost surely, 2^243105201105 is an apocalyptic number.

It is an amenable number.

243105201105 is a deficient number, since it is larger than the sum of its proper divisors (175783761135).

243105201105 is a wasteful number, since it uses less digits than its factorization.

243105201105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246693360.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 243105201105 its reverse (501102501342), we get a palindrome (744207702447).

The spelling of 243105201105 in words is "two hundred forty-three billion, one hundred five million, two hundred one thousand, one hundred five".