143105121212 has 12 divisors (see below), whose sum is σ = 250437945576. Its totient is φ = 71551422480.

The previous prime is 143105121209. The next prime is 143105121233. The reversal of 143105121212 is 212121501341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39338 + ... + 536430.

It is an arithmetic number, because the mean of its divisors is an integer number (20869828798).

Almost surely, 2^143105121212 is an apocalyptic number.

It is an amenable number.

143105121212 is a deficient number, since it is larger than the sum of its proper divisors (107332824364).

143105121212 is a wasteful number, since it uses less digits than its factorization.

143105121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569068 (or 569066 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 143105121212 its reverse (212121501341), we get a palindrome (355226622553).

The spelling of 143105121212 in words is "one hundred forty-three billion, one hundred five million, one hundred twenty-one thousand, two hundred twelve".