1020203030 has 72 divisors (see below), whose sum is σ = 2348169264. Its totient is φ = 317966880.

The previous prime is 1020203021. The next prime is 1020203033. The reversal of 1020203030 is 303020201.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020203033) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50687 + ... + 67893.

It is an arithmetic number, because the mean of its divisors is an integer number (32613462).

Almost surely, 2^1020203030 is an apocalyptic number.

1020203030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020203030 is an abundant number, since it is smaller than the sum of its proper divisors (1327966234).

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

1020203030 is a wasteful number, since it uses less digits than its factorization.

1020203030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17250 (or 17232 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1020203030 is about 31940.6172451316. The cubic root of 1020203030 is about 1006.6894942170.

Adding to 1020203030 its reverse (303020201), we get a palindrome (1323223231).

The spelling of 1020203030 in words is "one billion, twenty million, two hundred three thousand, thirty".