213343868929 has 2 divisors, whose sum is σ = 213343868930. Its totient is φ = 213343868928.

The previous prime is 213343868917. The next prime is 213343868989. The reversal of 213343868929 is 929868343312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199319388304 + 14024480625 = 446452^2 + 118425^2 .

It is a cyclic number.

It is not a de Polignac number, because 213343868929 - 2²⁷ = 213209651201 is a prime.

It is not a weakly prime, because it can be changed into another prime (213343868989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106671934464 + 106671934465.

It is an arithmetic number, because the mean of its divisors is an integer number (106671934465).

Almost surely, 2^213343868929 is an apocalyptic number.

It is an amenable number.

213343868929 is a deficient number, since it is larger than the sum of its proper divisors (1).

213343868929 is an equidigital number, since it uses as much as digits as its factorization.

213343868929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 58.

The spelling of 213343868929 in words is "two hundred thirteen billion, three hundred forty-three million, eight hundred sixty-eight thousand, nine hundred twenty-nine".