30211230331391 has 2 divisors, whose sum is σ = 30211230331392. Its totient is φ = 30211230331390.

The previous prime is 30211230331349. The next prime is 30211230331393. The reversal of 30211230331391 is 19313303211203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30211230331391 - 2⁶ = 30211230331327 is a prime.

Together with 30211230331393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30211230331393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105615165695 + 15105615165696.

It is an arithmetic number, because the mean of its divisors is an integer number (15105615165696).

Almost surely, 2^{30211230331391} is an apocalyptic number.

30211230331391 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211230331391 is an equidigital number, since it uses as much as digits as its factorization.

30211230331391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

Adding to 30211230331391 its reverse (19313303211203), we get a palindrome (49524533542594).

The spelling of 30211230331391 in words is "thirty trillion, two hundred eleven billion, two hundred thirty million, three hundred thirty-one thousand, three hundred ninety-one".