20003210030320 has 80 divisors (see below), whose sum is σ = 51305475569760. Its totient is φ = 7192165376000.

The previous prime is 20003210030249. The next prime is 20003210030341. The reversal of 20003210030320 is 2303001230002.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 20003210030294 and 20003210030303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127623481 + ... + 127780120.

It is an arithmetic number, because the mean of its divisors is an integer number (641318444622).

Almost surely, 2^{20003210030320} is an apocalyptic number.

20003210030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003210030320 is an abundant number, since it is smaller than the sum of its proper divisors (31302265539440).

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

20003210030320 is a wasteful number, since it uses less digits than its factorization.

20003210030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255403714 (or 255403708 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20003210030320 its reverse (2303001230002), we get a palindrome (22306211260322).

The spelling of 20003210030320 in words is "twenty trillion, three billion, two hundred ten million, thirty thousand, three hundred twenty".