30211311293 has 2 divisors, whose sum is σ = 30211311294. Its totient is φ = 30211311292.

The previous prime is 30211311289. The next prime is 30211311301. The reversal of 30211311293 is 39211311203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27938119609 + 2273191684 = 167147^2 + 47678^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211311293 - 2² = 30211311289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30211311223) 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, 15105655646 + 15105655647.

It is an arithmetic number, because the mean of its divisors is an integer number (15105655647).

Almost surely, 2^30211311293 is an apocalyptic number.

It is an amenable number.

30211311293 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211311293 is an equidigital number, since it uses as much as digits as its factorization.

30211311293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 30211311293 its reverse (39211311203), we get a palindrome (69422622496).

The spelling of 30211311293 in words is "thirty billion, two hundred eleven million, three hundred eleven thousand, two hundred ninety-three".