113223120212 has 6 divisors (see below), whose sum is σ = 198140460378. Its totient is φ = 56611560104.

The previous prime is 113223120209. The next prime is 113223120287. The reversal of 113223120212 is 212021322311.

It can be written as a sum of positive squares in only one way, i.e., 70839016336 + 42384103876 = 266156^2 + 205874^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14152890023 + ... + 14152890030.

It is an arithmetic number, because the mean of its divisors is an integer number (33023410063).

Almost surely, 2^113223120212 is an apocalyptic number.

It is an amenable number.

113223120212 is a deficient number, since it is larger than the sum of its proper divisors (84917340166).

113223120212 is a wasteful number, since it uses less digits than its factorization.

113223120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28305780057 (or 28305780055 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113223120212 its reverse (212021322311), we get a palindrome (325244442523).

The spelling of 113223120212 in words is "one hundred thirteen billion, two hundred twenty-three million, one hundred twenty thousand, two hundred twelve".