1021231330000 has 200 divisors, whose sum is σ = 2830846189248. Its totient is φ = 349501056000.

The previous prime is 1021231329997. The next prime is 1021231330003. The reversal of 1021231330000 is 331321201.

It is an interprime number because it is at equal distance from previous prime (1021231329997) and next prime (1021231330003).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231330003) by changing a digit.

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, 39397044 + ... + 39422956.

Almost surely, 2^{1021231330000} is an apocalyptic number.

1021231330000 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 1021231330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415423094624).

1021231330000 is an abundant number, since it is smaller than the sum of its proper divisors (1809614859248).

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

1021231330000 is an equidigital number, since it uses as much as digits as its factorization.

1021231330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26511 (or 26490 counting only the distinct ones).

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

Adding to 1021231330000 its reverse (331321201), we get a palindrome (1021562651201).

The spelling of 1021231330000 in words is "one trillion, twenty-one billion, two hundred thirty-one million, three hundred thirty thousand".