10002021313320 has 96 divisors (see below), whose sum is σ = 33385125238920. Its totient is φ = 2595119040000.

The previous prime is 10002021313313. The next prime is 10002021313387. The reversal of 10002021313320 is 2331312020001.

10002021313320 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 202 + 131 + 332 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9955905468804 + 46115844516 = 3155298^2 + 214746^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10002021313293 and 10002021313302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375437931 + ... + 375464570.

Almost surely, 2^{10002021313320} is an apocalyptic number.

10002021313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002021313320 is an abundant number, since it is smaller than the sum of its proper divisors (23383103925600).

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

10002021313320 is a wasteful number, since it uses less digits than its factorization.

10002021313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750902555 (or 750902548 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10002021313320 its reverse (2331312020001), we get a palindrome (12333333333321).

The spelling of 10002021313320 in words is "ten trillion, two billion, twenty-one million, three hundred thirteen thousand, three hundred twenty".