20300203220 has 24 divisors (see below), whose sum is σ = 46505920608. Its totient is φ = 7381892000.

The previous prime is 20300203177. The next prime is 20300203243. The reversal of 20300203220 is 2230200302.

It is a junction number, because it is equal to n+sod(n) for n = 20300203195 and 20300203204.

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, 46136606 + ... + 46137045.

It is an arithmetic number, because the mean of its divisors is an integer number (1937746692).

Almost surely, 2^20300203220 is an apocalyptic number.

20300203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20300203220 is an abundant number, since it is smaller than the sum of its proper divisors (26205717388).

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

20300203220 is a wasteful number, since it uses less digits than its factorization.

20300203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92273671 (or 92273669 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 20300203220 its reverse (2230200302), we get a palindrome (22530403522).

The spelling of 20300203220 in words is "twenty billion, three hundred million, two hundred three thousand, two hundred twenty".