30321030 has 32 divisors (see below), whose sum is σ = 77052384. Its totient is φ = 7609856.

The previous prime is 30321029. The next prime is 30321041. The reversal of 30321030 is 3012303.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30320997 and 30321015.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29217 + ... + 30236.

It is an arithmetic number, because the mean of its divisors is an integer number (2407887).

Almost surely, 2^30321030 is an apocalyptic number.

30321030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30321030 is an abundant number, since it is smaller than the sum of its proper divisors (46731354).

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

30321030 is a wasteful number, since it uses less digits than its factorization.

30321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59480.

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

The square root of 30321030 is about 5506.4534865919. The cubic root of 30321030 is about 311.8276702835.

Adding to 30321030 its reverse (3012303), we get a palindrome (33333333).

The spelling of 30321030 in words is "thirty million, three hundred twenty-one thousand, thirty".