30303130 has 32 divisors (see below), whose sum is σ = 64084608. Its totient is φ = 10171200.

The previous prime is 30303113. The next prime is 30303137. The reversal of 30303130 is 3130303.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 30303130.

It is not an unprimeable number, because it can be changed into a prime (30303137) 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, 9166 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (2002644).

Almost surely, 2^30303130 is an apocalyptic number.

30303130 is an abundant number, since it is smaller than the sum of its proper divisors (33781478).

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

30303130 is a wasteful number, since it uses less digits than its factorization.

30303130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222.

The product of its (nonzero) digits is 81, while the sum is 13.

The square root of 30303130 is about 5504.8278810513. The cubic root of 30303130 is about 311.7662957848.

Adding to 30303130 its reverse (3130303), we get a palindrome (33433433).

The spelling of 30303130 in words is "thirty million, three hundred three thousand, one hundred thirty".