30031101220 has 48 divisors (see below), whose sum is σ = 63531926640. Its totient is φ = 11923881984.

The previous prime is 30031101209. The next prime is 30031101253. The reversal of 30031101220 is 2210113003.

It can be written as a sum of positive squares in 8 ways, for example, as 1670520384 + 28360580836 = 40872^2 + 168406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30031101220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533732 + ... + 1553188.

It is an arithmetic number, because the mean of its divisors is an integer number (1323581805).

Almost surely, 2^30031101220 is an apocalyptic number.

It is an amenable number.

30031101220 is an abundant number, since it is smaller than the sum of its proper divisors (33500825420).

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

30031101220 is a wasteful number, since it uses less digits than its factorization.

30031101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20032 (or 20030 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30031101220 its reverse (2210113003), we get a palindrome (32241214223).

The spelling of 30031101220 in words is "thirty billion, thirty-one million, one hundred one thousand, two hundred twenty".