30311210213 has 2 divisors, whose sum is σ = 30311210214. Its totient is φ = 30311210212.

The previous prime is 30311210159. The next prime is 30311210221. The reversal of 30311210213 is 31201211303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30309765409 + 1444804 = 174097^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 30311210213 - 2¹⁸ = 30310948069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30311210191 and 30311210200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30311210233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155605106 + 15155605107.

It is an arithmetic number, because the mean of its divisors is an integer number (15155605107).

Almost surely, 2^30311210213 is an apocalyptic number.

It is an amenable number.

30311210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311210213 is an equidigital number, since it uses as much as digits as its factorization.

30311210213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30311210213 its reverse (31201211303), we get a palindrome (61512421516).

The spelling of 30311210213 in words is "thirty billion, three hundred eleven million, two hundred ten thousand, two hundred thirteen".