30320120213 has 2 divisors, whose sum is σ = 30320120214. Its totient is φ = 30320120212.

The previous prime is 30320120209. The next prime is 30320120251. The reversal of 30320120213 is 31202102303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23772397489 + 6547722724 = 154183^2 + 80918^2 .

It is a cyclic number.

It is not a de Polignac number, because 30320120213 - 2² = 30320120209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30320120191 and 30320120200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30320120263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160060106 + 15160060107.

It is an arithmetic number, because the mean of its divisors is an integer number (15160060107).

Almost surely, 2^30320120213 is an apocalyptic number.

It is an amenable number.

30320120213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30320120213 is an equidigital number, since it uses as much as digits as its factorization.

30320120213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30320120213 its reverse (31202102303), we get a palindrome (61522222516).

The spelling of 30320120213 in words is "thirty billion, three hundred twenty million, one hundred twenty thousand, two hundred thirteen".