212023319591 has 2 divisors, whose sum is σ = 212023319592. Its totient is φ = 212023319590.

The previous prime is 212023319513. The next prime is 212023319617. The reversal of 212023319591 is 195913320212.

212023319591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212023319591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212023310591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011659795 + 106011659796.

It is an arithmetic number, because the mean of its divisors is an integer number (106011659796).

Almost surely, 2^212023319591 is an apocalyptic number.

212023319591 is a deficient number, since it is larger than the sum of its proper divisors (1).

212023319591 is an equidigital number, since it uses as much as digits as its factorization.

212023319591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 212023319591 in words is "two hundred twelve billion, twenty-three million, three hundred nineteen thousand, five hundred ninety-one".