1323323311200 has 144 divisors (see below), whose sum is σ = 4699000869696. Its totient is φ = 320805644800.

The previous prime is 1323323311169. The next prime is 1323323311229. The reversal of 1323323311200 is 21133233231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25036542 + ... + 25089341.

It is an arithmetic number, because the mean of its divisors is an integer number (32631950484).

Almost surely, 2^{1323323311200} is an apocalyptic number.

1323323311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323323311200 is an abundant number, since it is smaller than the sum of its proper divisors (3375677558496).

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

1323323311200 is a wasteful number, since it uses less digits than its factorization.

1323323311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50125917 (or 50125904 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1323323311200 its reverse (21133233231), we get a palindrome (1344456544431).

The spelling of 1323323311200 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-three million, three hundred eleven thousand, two hundred".