30313032220 has 48 divisors (see below), whose sum is σ = 64035861120. Its totient is φ = 12053228544.

The previous prime is 30313032187. The next prime is 30313032247. The reversal of 30313032220 is 2223031303.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5864077 + ... + 5869243.

It is an arithmetic number, because the mean of its divisors is an integer number (1334080440).

Almost surely, 2^30313032220 is an apocalyptic number.

It is an amenable number.

30313032220 is an abundant number, since it is smaller than the sum of its proper divisors (33722828900).

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

30313032220 is a wasteful number, since it uses less digits than its factorization.

30313032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862 (or 6860 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30313032220 its reverse (2223031303), we get a palindrome (32536063523).

The spelling of 30313032220 in words is "thirty billion, three hundred thirteen million, thirty-two thousand, two hundred twenty".