203041020 has 192 divisors, whose sum is σ = 717566976. Its totient is φ = 41748480.

The previous prime is 203040899. The next prime is 203041031. The reversal of 203041020 is 20140302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203040987 and 203041005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223407 + ... + 224313.

It is an arithmetic number, because the mean of its divisors is an integer number (3737328).

Almost surely, 2^203041020 is an apocalyptic number.

203041020 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 203041020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358783488).

203041020 is an abundant number, since it is smaller than the sum of its proper divisors (514525956).

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

203041020 is a wasteful number, since it uses less digits than its factorization.

203041020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 203041020 is about 14249.2462958572. The cubic root of 203041020 is about 587.7526494454.

Adding to 203041020 its reverse (20140302), we get a palindrome (223181322).

The spelling of 203041020 in words is "two hundred three million, forty-one thousand, twenty".