1323111112 has 8 divisors (see below), whose sum is σ = 2480833350. Its totient is φ = 661555552.

The previous prime is 1323111103. The next prime is 1323111131. The reversal of 1323111112 is 2111113231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 783664036 + 539447076 = 27994^2 + 23226^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82694437 + ... + 82694452.

Almost surely, 2^1323111112 is an apocalyptic number.

It is an amenable number.

1323111112 is a deficient number, since it is larger than the sum of its proper divisors (1157722238).

1323111112 is a wasteful number, since it uses less digits than its factorization.

1323111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165388895 (or 165388891 counting only the distinct ones).

The product of its digits is 36, while the sum is 16.

The square root of 1323111112 is about 36374.5943207618. The cubic root of 1323111112 is about 1097.8224447827.

Adding to 1323111112 its reverse (2111113231), we get a palindrome (3434224343).

The spelling of 1323111112 in words is "one billion, three hundred twenty-three million, one hundred eleven thousand, one hundred twelve".