1030303220 has 48 divisors (see below), whose sum is σ = 2247123648. Its totient is φ = 396506880.

The previous prime is 1030303189. The next prime is 1030303229. The reversal of 1030303220 is 223030301.

It is a junction number, because it is equal to n+sod(n) for n = 1030303195 and 1030303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030303229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48680 + ... + 66560.

It is an arithmetic number, because the mean of its divisors is an integer number (46815076).

Almost surely, 2^1030303220 is an apocalyptic number.

1030303220 is a gapful number since it is divisible by the number (10) 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 1030303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123561824).

1030303220 is an abundant number, since it is smaller than the sum of its proper divisors (1216820428).

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

1030303220 is a wasteful number, since it uses less digits than its factorization.

1030303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000 (or 17998 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1030303220 is about 32098.3367170326. The cubic root of 1030303220 is about 1010.0007254186. Note that the first 3 decimals are identical.

Adding to 1030303220 its reverse (223030301), we get a palindrome (1253333521).

The spelling of 1030303220 in words is "one billion, thirty million, three hundred three thousand, two hundred twenty".