30321132220 has 36 divisors (see below), whose sum is σ = 65441877480. Its totient is φ = 11800646208.

The previous prime is 30321132217. The next prime is 30321132223. The reversal of 30321132220 is 2223112303.

It is an interprime number because it is at equal distance from previous prime (30321132217) and next prime (30321132223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526330 + ... + 581089.

It is an arithmetic number, because the mean of its divisors is an integer number (1817829930).

Almost surely, 2^30321132220 is an apocalyptic number.

It is an amenable number.

30321132220 is an abundant number, since it is smaller than the sum of its proper divisors (35120745260).

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

30321132220 is a wasteful number, since it uses less digits than its factorization.

30321132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107502 (or 1107463 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30321132220 its reverse (2223112303), we get a palindrome (32544244523).

The spelling of 30321132220 in words is "thirty billion, three hundred twenty-one million, one hundred thirty-two thousand, two hundred twenty".