3213978969211 has 2 divisors, whose sum is σ = 3213978969212. Its totient is φ = 3213978969210.

The previous prime is 3213978969209. The next prime is 3213978969217. The reversal of 3213978969211 is 1129698793123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3213978969211 - 2¹ = 3213978969209 is a prime.

Together with 3213978969209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3213978969211.

It is not a weakly prime, because it can be changed into another prime (3213978969217) 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, 1606989484605 + 1606989484606.

It is an arithmetic number, because the mean of its divisors is an integer number (1606989484606).

Almost surely, 2^{3213978969211} is an apocalyptic number.

3213978969211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213978969211 is an equidigital number, since it uses as much as digits as its factorization.

3213978969211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 61.

The spelling of 3213978969211 in words is "three trillion, two hundred thirteen billion, nine hundred seventy-eight million, nine hundred sixty-nine thousand, two hundred eleven".