213344208929 has 2 divisors, whose sum is σ = 213344208930. Its totient is φ = 213344208928.

The previous prime is 213344208907. The next prime is 213344208971. The reversal of 213344208929 is 929802443312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136918500625 + 76425708304 = 370025^2 + 276452^2 .

It is a cyclic number.

It is not a de Polignac number, because 213344208929 - 2⁸ = 213344208673 is a prime.

It is not a weakly prime, because it can be changed into another prime (213344208529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106672104464 + 106672104465.

It is an arithmetic number, because the mean of its divisors is an integer number (106672104465).

Almost surely, 2^213344208929 is an apocalyptic number.

It is an amenable number.

213344208929 is a deficient number, since it is larger than the sum of its proper divisors (1).

213344208929 is an equidigital number, since it uses as much as digits as its factorization.

213344208929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 213344208929 in words is "two hundred thirteen billion, three hundred forty-four million, two hundred eight thousand, nine hundred twenty-nine".