213433334057 has 2 divisors, whose sum is σ = 213433334058. Its totient is φ = 213433334056.

The previous prime is 213433334039. The next prime is 213433334111. The reversal of 213433334057 is 750433334312.

213433334057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189367706896 + 24065627161 = 435164^2 + 155131^2 .

It is a cyclic number.

It is not a de Polignac number, because 213433334057 - 2¹² = 213433329961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213433334057.

It is not a weakly prime, because it can be changed into another prime (213433334957) 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, 106716667028 + 106716667029.

It is an arithmetic number, because the mean of its divisors is an integer number (106716667029).

Almost surely, 2^213433334057 is an apocalyptic number.

It is an amenable number.

213433334057 is a deficient number, since it is larger than the sum of its proper divisors (1).

213433334057 is an equidigital number, since it uses as much as digits as its factorization.

213433334057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 38.

Adding to 213433334057 its reverse (750433334312), we get a palindrome (963866668369).

The spelling of 213433334057 in words is "two hundred thirteen billion, four hundred thirty-three million, three hundred thirty-four thousand, fifty-seven".