1321012330000 has 200 divisors, whose sum is σ = 3523632526656. Its totient is φ = 475608000000.

The previous prime is 1321012329997. The next prime is 1321012330061. The reversal of 1321012330000 is 332101231.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

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 39 ways as a sum of consecutive naturals, for example, 11050549 + ... + 11169451.

Almost surely, 2^{1321012330000} is an apocalyptic number.

1321012330000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321012330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761816263328).

1321012330000 is an abundant number, since it is smaller than the sum of its proper divisors (2202620196656).

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

1321012330000 is a wasteful number, since it uses less digits than its factorization.

1321012330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119043 (or 119022 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1321012330000 its reverse (332101231), we get a palindrome (1321344431231).

The spelling of 1321012330000 in words is "one trillion, three hundred twenty-one billion, twelve million, three hundred thirty thousand".