303100020 has 72 divisors (see below), whose sum is σ = 949079040. Its totient is φ = 78217920.

The previous prime is 303100019. The next prime is 303100067. The reversal of 303100020 is 20001303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 303099975 and 303100011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21580 + ... + 32739.

Almost surely, 2^303100020 is an apocalyptic number.

303100020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303100020 is an abundant number, since it is smaller than the sum of its proper divisors (645979020).

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

303100020 is a wasteful number, since it uses less digits than its factorization.

303100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54365 (or 54360 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 303100020 is about 17409.7679479079. The cubic root of 303100020 is about 671.7308924608.

Adding to 303100020 its reverse (20001303), we get a palindrome (323101323).

The spelling of 303100020 in words is "three hundred three million, one hundred thousand, twenty".