220103312020 has 96 divisors (see below), whose sum is σ = 485885796480. Its totient is φ = 83634270720.

The previous prime is 220103312003. The next prime is 220103312021. The reversal of 220103312020 is 20213301022.

It is a junction number, because it is equal to n+sod(n) for n = 220103311985 and 220103312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220103312021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36797430 + ... + 36803410.

It is an arithmetic number, because the mean of its divisors is an integer number (5061310380).

Almost surely, 2^220103312020 is an apocalyptic number.

220103312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220103312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242942898240).

220103312020 is an abundant number, since it is smaller than the sum of its proper divisors (265782484460).

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

220103312020 is a wasteful number, since it uses less digits than its factorization.

220103312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033 (or 7031 counting only the distinct ones).

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

Adding to 220103312020 its reverse (20213301022), we get a palindrome (240316613042).

The spelling of 220103312020 in words is "two hundred twenty billion, one hundred three million, three hundred twelve thousand, twenty".