203010002020 has 192 divisors, whose sum is σ = 502249853952. Its totient is φ = 67495680000.

The previous prime is 203010002003. The next prime is 203010002029. The reversal of 203010002020 is 20200010302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 203010001988 and 203010002006.

It is not an unprimeable number, because it can be changed into a prime (203010002029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321727105 + ... + 321727735.

It is an arithmetic number, because the mean of its divisors is an integer number (2615884656).

Almost surely, 2^203010002020 is an apocalyptic number.

203010002020 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 203010002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251124926976).

203010002020 is an abundant number, since it is smaller than the sum of its proper divisors (299239851932).

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

203010002020 is a wasteful number, since it uses less digits than its factorization.

203010002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 203010002020 its reverse (20200010302), we get a palindrome (223210012322).

The spelling of 203010002020 in words is "two hundred three billion, ten million, two thousand, twenty".