1323012112 has 20 divisors (see below), whose sum is σ = 2564027856. Its totient is φ = 661327520.

The previous prime is 1323012107. The next prime is 1323012113. The reversal of 1323012112 is 2112103231.

It is a super-2 number, since 2×1323012112² = 3500722096997401088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1323012113) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 66243 + ... + 83869.

Almost surely, 2^1323012112 is an apocalyptic number.

It is an amenable number.

1323012112 is a deficient number, since it is larger than the sum of its proper divisors (1241015744).

1323012112 is a wasteful number, since it uses less digits than its factorization.

1323012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22326 (or 22320 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1323012112 is about 36373.2334553858. The cubic root of 1323012112 is about 1097.7950630731.

Adding to 1323012112 its reverse (2112103231), we get a palindrome (3435115343).

The spelling of 1323012112 in words is "one billion, three hundred twenty-three million, twelve thousand, one hundred twelve".