213339475668353 has 2 divisors, whose sum is σ = 213339475668354. Its totient is φ = 213339475668352.

The previous prime is 213339475668349. The next prime is 213339475668379. The reversal of 213339475668353 is 353866574933312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189375249231424 + 23964226436929 = 13761368^2 + 4895327^2 .

It is a cyclic number.

It is not a de Polignac number, because 213339475668353 - 2² = 213339475668349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213339475668653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106669737834176 + 106669737834177.

It is an arithmetic number, because the mean of its divisors is an integer number (106669737834177).

Almost surely, 2^{213339475668353} is an apocalyptic number.

It is an amenable number.

213339475668353 is a deficient number, since it is larger than the sum of its proper divisors (1).

213339475668353 is an equidigital number, since it uses as much as digits as its factorization.

213339475668353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 881798400, while the sum is 68.

The spelling of 213339475668353 in words is "two hundred thirteen trillion, three hundred thirty-nine billion, four hundred seventy-five million, six hundred sixty-eight thousand, three hundred fifty-three".