20303130 has 16 divisors (see below), whose sum is σ = 48727584. Its totient is φ = 5414160.

The previous prime is 20303123. The next prime is 20303137. The reversal of 20303130 is 3130302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20303123) and next prime (20303137).

It is not an unprimeable number, because it can be changed into a prime (20303137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338356 + ... + 338415.

It is an arithmetic number, because the mean of its divisors is an integer number (3045474).

Almost surely, 2^20303130 is an apocalyptic number.

20303130 is an abundant number, since it is smaller than the sum of its proper divisors (28424454).

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

20303130 is a wasteful number, since it uses less digits than its factorization.

20303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676781.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 20303130 is about 4505.8994662553. The cubic root of 20303130 is about 272.8062600508.

Adding to 20303130 its reverse (3130302), we get a palindrome (23433432).

The spelling of 20303130 in words is "twenty million, three hundred three thousand, one hundred thirty".