30212122013 has 2 divisors, whose sum is σ = 30212122014. Its totient is φ = 30212122012.

The previous prime is 30212122009. The next prime is 30212122063. The reversal of 30212122013 is 31022121203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27995313124 + 2216808889 = 167318^2 + 47083^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212122013 - 2² = 30212122009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30212121982 and 30212122000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212122063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106061006 + 15106061007.

It is an arithmetic number, because the mean of its divisors is an integer number (15106061007).

Almost surely, 2^30212122013 is an apocalyptic number.

It is an amenable number.

30212122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212122013 is an equidigital number, since it uses as much as digits as its factorization.

30212122013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30212122013 its reverse (31022121203), we get a palindrome (61234243216).

The spelling of 30212122013 in words is "thirty billion, two hundred twelve million, one hundred twenty-two thousand, thirteen".