20002021310320 has 40 divisors (see below), whose sum is σ = 53148228054624. Its totient is φ = 6857835877632.

The previous prime is 20002021310303. The next prime is 20002021310339. The reversal of 20002021310320 is 2301312020002.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a junction number, because it is equal to n+sod(n) for n = 20002021310294 and 20002021310303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17858947039 + ... + 17858948158.

Almost surely, 2^{20002021310320} is an apocalyptic number.

20002021310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002021310320 is an abundant number, since it is smaller than the sum of its proper divisors (33146206744304).

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

20002021310320 is a wasteful number, since it uses less digits than its factorization.

20002021310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35717895217 (or 35717895211 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20002021310320 its reverse (2301312020002), we get a palindrome (22303333330322).

The spelling of 20002021310320 in words is "twenty trillion, two billion, twenty-one million, three hundred ten thousand, three hundred twenty".