30120231100 has 144 divisors (see below), whose sum is σ = 71316685440. Its totient is φ = 10995609600.

The previous prime is 30120231041. The next prime is 30120231121. The reversal of 30120231100 is 113202103.

It is a congruent number.

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, 24467485 + ... + 24468715.

It is an arithmetic number, because the mean of its divisors is an integer number (495254760).

Almost surely, 2^30120231100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30120231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35658342720).

30120231100 is an abundant number, since it is smaller than the sum of its proper divisors (41196454340).

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

30120231100 is a wasteful number, since it uses less digits than its factorization.

30120231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 1681 counting only the distinct ones).

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

Adding to 30120231100 its reverse (113202103), we get a palindrome (30233433203).

The spelling of 30120231100 in words is "thirty billion, one hundred twenty million, two hundred thirty-one thousand, one hundred".