1321303223200 has 72 divisors (see below), whose sum is σ = 3226974085440. Its totient is φ = 528301305600.

The previous prime is 1321303223179. The next prime is 1321303223237. The reversal of 1321303223200 is 23223031231.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1586281 + ... + 2271319.

It is an arithmetic number, because the mean of its divisors is an integer number (44819084520).

Almost surely, 2^{1321303223200} is an apocalyptic number.

1321303223200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321303223200 is an abundant number, since it is smaller than the sum of its proper divisors (1905670862240).

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

1321303223200 is a wasteful number, since it uses less digits than its factorization.

1321303223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687470 (or 687457 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1321303223200 its reverse (23223031231), we get a palindrome (1344526254431).

The spelling of 1321303223200 in words is "one trillion, three hundred twenty-one billion, three hundred three million, two hundred twenty-three thousand, two hundred".