20020303231220 has 48 divisors (see below), whose sum is σ = 42193359129600. Its totient is φ = 7979455756800.

The previous prime is 20020303231217. The next prime is 20020303231301. The reversal of 20020303231220 is 2213230302002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20020303231192 and 20020303231201.

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, 6012221 + ... + 8728539.

It is an arithmetic number, because the mean of its divisors is an integer number (879028315200).

Almost surely, 2^{20020303231220} is an apocalyptic number.

20020303231220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020303231220 is an abundant number, since it is smaller than the sum of its proper divisors (22173055898380).

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

20020303231220 is a wasteful number, since it uses less digits than its factorization.

20020303231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717648 (or 2717646 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20020303231220 its reverse (2213230302002), we get a palindrome (22233533533222).

The spelling of 20020303231220 in words is "twenty trillion, twenty billion, three hundred three million, two hundred thirty-one thousand, two hundred twenty".