211308212879 has 2 divisors, whose sum is σ = 211308212880. Its totient is φ = 211308212878.

The previous prime is 211308212867. The next prime is 211308212893. The reversal of 211308212879 is 978212803112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211308212879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211308212779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105654106439 + 105654106440.

It is an arithmetic number, because the mean of its divisors is an integer number (105654106440).

Almost surely, 2^211308212879 is an apocalyptic number.

211308212879 is a deficient number, since it is larger than the sum of its proper divisors (1).

211308212879 is an equidigital number, since it uses as much as digits as its factorization.

211308212879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 211308212879 in words is "two hundred eleven billion, three hundred eight million, two hundred twelve thousand, eight hundred seventy-nine".