243212101102 has 8 divisors (see below), whose sum is σ = 364926320136. Its totient is φ = 121569994392.

The previous prime is 243212101087. The next prime is 243212101103. The reversal of 243212101102 is 201101212342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×243212101102² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243212101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243212101103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18019648 + ... + 18033139.

It is an arithmetic number, because the mean of its divisors is an integer number (45615790017).

Almost surely, 2^243212101102 is an apocalyptic number.

243212101102 is a deficient number, since it is larger than the sum of its proper divisors (121714219034).

243212101102 is a wasteful number, since it uses less digits than its factorization.

243212101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36056162.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 243212101102 its reverse (201101212342), we get a palindrome (444313313444).

The spelling of 243212101102 in words is "two hundred forty-three billion, two hundred twelve million, one hundred one thousand, one hundred two".