30112030321 has 4 divisors (see below), whose sum is σ = 30116946292. Its totient is φ = 30107114352.

The previous prime is 30112030279. The next prime is 30112030349. The reversal of 30112030321 is 12303021103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29390302096 + 721728225 = 171436^2 + 26865^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112030321 - 2¹⁷ = 30111899249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30112030295 and 30112030304.

It is not an unprimeable number, because it can be changed into a prime (30112030381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2448786 + ... + 2461051.

It is an arithmetic number, because the mean of its divisors is an integer number (7529236573).

Almost surely, 2^30112030321 is an apocalyptic number.

It is an amenable number.

30112030321 is a deficient number, since it is larger than the sum of its proper divisors (4915971).

30112030321 is an equidigital number, since it uses as much as digits as its factorization.

30112030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915970.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30112030321 its reverse (12303021103), we get a palindrome (42415051424).

The spelling of 30112030321 in words is "thirty billion, one hundred twelve million, thirty thousand, three hundred twenty-one".