1323211023200 has 144 divisors (see below), whose sum is σ = 3572226581616. Its totient is φ = 474576076800.

The previous prime is 1323211023073. The next prime is 1323211023241. The reversal of 1323211023200 is 23201123231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 387497 + ... + 1672296.

It is an arithmetic number, because the mean of its divisors is an integer number (24807129039).

Almost surely, 2^{1323211023200} is an apocalyptic number.

1323211023200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323211023200 is an abundant number, since it is smaller than the sum of its proper divisors (2249015558416).

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

1323211023200 is a wasteful number, since it uses less digits than its factorization.

1323211023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059897 (or 2059884 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1323211023200 its reverse (23201123231), we get a palindrome (1346412146431).

The spelling of 1323211023200 in words is "one trillion, three hundred twenty-three billion, two hundred eleven million, twenty-three thousand, two hundred".