211959361259 has 2 divisors, whose sum is σ = 211959361260. Its totient is φ = 211959361258.

The previous prime is 211959361217. The next prime is 211959361267. The reversal of 211959361259 is 952163959112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211959361259 - 2¹² = 211959357163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211959361259.

It is not a weakly prime, because it can be changed into another prime (211959361459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105979680629 + 105979680630.

It is an arithmetic number, because the mean of its divisors is an integer number (105979680630).

Almost surely, 2^211959361259 is an apocalyptic number.

211959361259 is a deficient number, since it is larger than the sum of its proper divisors (1).

211959361259 is an equidigital number, since it uses as much as digits as its factorization.

211959361259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1312200, while the sum is 53.

The spelling of 211959361259 in words is "two hundred eleven billion, nine hundred fifty-nine million, three hundred sixty-one thousand, two hundred fifty-nine".