303242130 has 56 divisors (see below), whose sum is σ = 818399052. Its totient is φ = 80862624.

The previous prime is 303242129. The next prime is 303242131. The reversal of 303242130 is 31242303.

It is an interprime number because it is at equal distance from previous prime (303242129) and next prime (303242131).

It can be written as a sum of positive squares in 2 ways, for example, as 295805601 + 7436529 = 17199^2 + 2727^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (303242131) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13509 + ... + 28088.

Almost surely, 2^303242130 is an apocalyptic number.

303242130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

303242130 is an abundant number, since it is smaller than the sum of its proper divisors (515156922).

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

303242130 is an equidigital number, since it uses as much as digits as its factorization.

303242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41622 (or 41607 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303242130 is about 17413.8487991598. The cubic root of 303242130 is about 671.8358575502.

Adding to 303242130 its reverse (31242303), we get a palindrome (334484433).

The spelling of 303242130 in words is "three hundred three million, two hundred forty-two thousand, one hundred thirty".