20203203020 has 216 divisors, whose sum is σ = 57719646432. Its totient is φ = 5811886080.

The previous prime is 20203202993. The next prime is 20203203049. The reversal of 20203203020 is 2030230202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20203202986 and 20203203004.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2859332 + ... + 2866388.

Almost surely, 2^20203203020 is an apocalyptic number.

20203203020 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 20203203020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28859823216).

20203203020 is an abundant number, since it is smaller than the sum of its proper divisors (37516443412).

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

20203203020 is a wasteful number, since it uses less digits than its factorization.

20203203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121 (or 7095 counting only the distinct ones).

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

Adding to 20203203020 its reverse (2030230202), we get a palindrome (22233433222).

The spelling of 20203203020 in words is "twenty billion, two hundred three million, two hundred three thousand, twenty".