1002021003320 has 64 divisors (see below), whose sum is σ = 2405964487680. Its totient is φ = 374261078016.

The previous prime is 1002021003311. The next prime is 1002021003323. The reversal of 1002021003320 is 233001202001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002021003295 and 1002021003304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002021003323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5715059 + ... + 5887778.

It is an arithmetic number, because the mean of its divisors is an integer number (37593195120).

Almost surely, 2^{1002021003320} is an apocalyptic number.

1002021003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002021003320 is an abundant number, since it is smaller than the sum of its proper divisors (1403943484360).

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

1002021003320 is a wasteful number, since it uses less digits than its factorization.

1002021003320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602992 (or 11602988 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1002021003320 its reverse (233001202001), we get a palindrome (1235022205321).

The spelling of 1002021003320 in words is "one trillion, two billion, twenty-one million, three thousand, three hundred twenty".