1323000012 has 24 divisors (see below), whose sum is σ = 3088520176. Its totient is φ = 440782848.

The previous prime is 1322999999. The next prime is 1323000037. The reversal of 1323000012 is 2100003231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733 + ... + 51444.

Almost surely, 2^1323000012 is an apocalyptic number.

1323000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323000012 is an abundant number, since it is smaller than the sum of its proper divisors (1765520164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323000012 is a wasteful number, since it uses less digits than its factorization.

1323000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54297 (or 54295 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1323000012 is about 36373.0671239036. The cubic root of 1323000012 is about 1097.7917163260.

Adding to 1323000012 its reverse (2100003231), we get a palindrome (3423003243).

It can be divided in two parts, 13230000 and 12, that multiplied together give a square (158760000 = 12600²).

The spelling of 1323000012 in words is "one billion, three hundred twenty-three million, twelve", and thus it is an aban number.