1321030032200 has 24 divisors (see below), whose sum is σ = 3071394825330. Its totient is φ = 528412012800.

The previous prime is 1321030032193. The next prime is 1321030032221. The reversal of 1321030032200 is 22300301231.

It can be written as a sum of positive squares in 3 ways, for example, as 1218997062724 + 102032969476 = 1104082^2 + 319426^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3302574881 + ... + 3302575280.

Almost surely, 2^{1321030032200} is an apocalyptic number.

1321030032200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321030032200 is an abundant number, since it is smaller than the sum of its proper divisors (1750364793130).

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

1321030032200 is a wasteful number, since it uses less digits than its factorization.

1321030032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6605150177 (or 6605150168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1321030032200 its reverse (22300301231), we get a palindrome (1343330333431).

The spelling of 1321030032200 in words is "one trillion, three hundred twenty-one billion, thirty million, thirty-two thousand, two hundred".