303112020 has 48 divisors (see below), whose sum is σ = 861392448. Its totient is φ = 79622400.

The previous prime is 303112003. The next prime is 303112027. The reversal of 303112020 is 20211303.

It is a happy number.

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 = 303111987 and 303112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303112027) 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, 33681 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (17945676).

Almost surely, 2^303112020 is an apocalyptic number.

303112020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303112020 is an abundant number, since it is smaller than the sum of its proper divisors (558280428).

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

303112020 is a wasteful number, since it uses less digits than its factorization.

303112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75480 (or 75478 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 303112020 is about 17410.1125786136. The cubic root of 303112020 is about 671.7397571521.

Adding to 303112020 its reverse (20211303), we get a palindrome (323323323).

It can be divided in two parts, 3031 and 12020, that added together give a palindrome (15051).

The spelling of 303112020 in words is "three hundred three million, one hundred twelve thousand, twenty".