30112210321 has 2 divisors, whose sum is σ = 30112210322. Its totient is φ = 30112210320.

The previous prime is 30112210253. The next prime is 30112210333. The reversal of 30112210321 is 12301221103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28474875025 + 1637335296 = 168745^2 + 40464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30112210321 is a prime.

It is a super-2 number, since 2×30112210321² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30112210295 and 30112210304.

It is not a weakly prime, because it can be changed into another prime (30112210361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056105160 + 15056105161.

It is an arithmetic number, because the mean of its divisors is an integer number (15056105161).

Almost surely, 2^30112210321 is an apocalyptic number.

It is an amenable number.

30112210321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112210321 is an equidigital number, since it uses as much as digits as its factorization.

30112210321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30112210321 its reverse (12301221103), we get a palindrome (42413431424).

The spelling of 30112210321 in words is "thirty billion, one hundred twelve million, two hundred ten thousand, three hundred twenty-one".