30211212313 has 2 divisors, whose sum is σ = 30211212314. Its totient is φ = 30211212312.

The previous prime is 30211212281. The next prime is 30211212331. The reversal of 30211212313 is 31321211203.

Together with next prime (30211212331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24010122304 + 6201090009 = 154952^2 + 78747^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211212313 - 2⁵ = 30211212281 is a prime.

It is not a weakly prime, because it can be changed into another prime (30211210313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105606156 + 15105606157.

It is an arithmetic number, because the mean of its divisors is an integer number (15105606157).

Almost surely, 2^30211212313 is an apocalyptic number.

It is an amenable number.

30211212313 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211212313 is an equidigital number, since it uses as much as digits as its factorization.

30211212313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30211212313 its reverse (31321211203), we get a palindrome (61532423516).

The spelling of 30211212313 in words is "thirty billion, two hundred eleven million, two hundred twelve thousand, three hundred thirteen".