20031303221000 has 64 divisors (see below), whose sum is σ = 48911216964480. Its totient is φ = 7664150788800.

The previous prime is 20031303220987. The next prime is 20031303221021. The reversal of 20031303221000 is 12230313002.

It is a self number, because there is not a number n which added to its sum of digits gives 20031303221000.

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, 435440114 + ... + 435486113.

It is an arithmetic number, because the mean of its divisors is an integer number (764237765070).

Almost surely, 2^{20031303221000} is an apocalyptic number.

20031303221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031303221000 is an abundant number, since it is smaller than the sum of its proper divisors (28879913743480).

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

20031303221000 is a wasteful number, since it uses less digits than its factorization.

20031303221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870926271 (or 870926257 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20031303221000 its reverse (12230313002), we get a palindrome (20043533534002).

The spelling of 20031303221000 in words is "twenty trillion, thirty-one billion, three hundred three million, two hundred twenty-one thousand".