303120020 has 24 divisors (see below), whose sum is σ = 727488384. Its totient is φ = 103926816.

The previous prime is 303120019. The next prime is 303120023. The reversal of 303120020 is 20021303.

It is a junction number, because it is equal to n+sod(n) for n = 303119983 and 303120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303120023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082432 + ... + 1082711.

It is an arithmetic number, because the mean of its divisors is an integer number (30312016).

Almost surely, 2^303120020 is an apocalyptic number.

It is an amenable number.

303120020 is an abundant number, since it is smaller than the sum of its proper divisors (424368364).

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

303120020 is a wasteful number, since it uses less digits than its factorization.

303120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165159 (or 2165157 counting only the distinct ones).

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

The square root of 303120020 is about 17410.3423286275. The cubic root of 303120020 is about 671.7456668163.

Adding to 303120020 its reverse (20021303), we get a palindrome (323141323).

The spelling of 303120020 in words is "three hundred three million, one hundred twenty thousand, twenty".