1323211112 has 8 divisors (see below), whose sum is σ = 2481020850. Its totient is φ = 661605552.

The previous prime is 1323211111. The next prime is 1323211157. The reversal of 1323211112 is 2111123231.

It can be written as a sum of positive squares in only one way, i.e., 1319578276 + 3632836 = 36326^2 + 1906^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1323211111) 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 as a sum of consecutive naturals, namely, 82700687 + ... + 82700702.

Almost surely, 2^1323211112 is an apocalyptic number.

It is an amenable number.

1323211112 is a deficient number, since it is larger than the sum of its proper divisors (1157809738).

1323211112 is a wasteful number, since it uses less digits than its factorization.

1323211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165401395 (or 165401391 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 1323211112 is about 36375.9688805673. The cubic root of 1323211112 is about 1097.8501016887.

Adding to 1323211112 its reverse (2111123231), we get a palindrome (3434334343).

The spelling of 1323211112 in words is "one billion, three hundred twenty-three million, two hundred eleven thousand, one hundred twelve".