1323112012200 has 288 divisors, whose sum is σ = 5026936692960. Its totient is φ = 320754297600.

The previous prime is 1323112012193. The next prime is 1323112012279. The reversal of 1323112012200 is 22102113231.

1323112012200 is a `hidden beast` number, since 1 + 323 + 1 + 120 + 1 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 702879 + ... + 1772078.

It is an arithmetic number, because the mean of its divisors is an integer number (17454641295).

Almost surely, 2^{1323112012200} is an apocalyptic number.

1323112012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323112012200 is an abundant number, since it is smaller than the sum of its proper divisors (3703824680760).

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

1323112012200 is a wasteful number, since it uses less digits than its factorization.

1323112012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474999 (or 2474978 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1323112012200 its reverse (22102113231), we get a palindrome (1345214125431).

The spelling of 1323112012200 in words is "one trillion, three hundred twenty-three billion, one hundred twelve million, twelve thousand, two hundred".