30430301220 has 144 divisors (see below), whose sum is σ = 103945121280. Its totient is φ = 7139059200.

The previous prime is 30430301177. The next prime is 30430301243. The reversal of 30430301220 is 2210303403.

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

It is a junction number, because it is equal to n+sod(n) for n = 30430301193 and 30430301202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186505 + ... + 309264.

It is an arithmetic number, because the mean of its divisors is an integer number (721841120).

Almost surely, 2^30430301220 is an apocalyptic number.

30430301220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30430301220 is an abundant number, since it is smaller than the sum of its proper divisors (73514820060).

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

30430301220 is a wasteful number, since it uses less digits than its factorization.

30430301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495826 (or 495821 counting only the distinct ones).

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

Adding to 30430301220 its reverse (2210303403), we get a palindrome (32640604623).

The spelling of 30430301220 in words is "thirty billion, four hundred thirty million, three hundred one thousand, two hundred twenty".