1223302312 has 8 divisors (see below), whose sum is σ = 2293691850. Its totient is φ = 611651152.

The previous prime is 1223302307. The next prime is 1223302321. The reversal of 1223302312 is 2132033221.

It can be written as a sum of positive squares in only one way, i.e., 746054596 + 477247716 = 27314^2 + 21846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1223302312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76456387 + ... + 76456402.

Almost surely, 2^1223302312 is an apocalyptic number.

It is an amenable number.

1223302312 is a deficient number, since it is larger than the sum of its proper divisors (1070389538).

1223302312 is a wasteful number, since it uses less digits than its factorization.

1223302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152912795 (or 152912791 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223302312 is about 34975.7389057043. The cubic root of 1223302312 is about 1069.4929650011.

Adding to 1223302312 its reverse (2132033221), we get a palindrome (3355335533).

The spelling of 1223302312 in words is "one billion, two hundred twenty-three million, three hundred two thousand, three hundred twelve".