213320110057 has 2 divisors, whose sum is σ = 213320110058. Its totient is φ = 213320110056.

The previous prime is 213320110037. The next prime is 213320110139. The reversal of 213320110057 is 750011023312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135726664921 + 77593445136 = 368411^2 + 278556^2 .

It is a cyclic number.

It is not a de Polignac number, because 213320110057 - 2²⁷ = 213185892329 is a prime.

It is not a weakly prime, because it can be changed into another prime (213320110037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106660055028 + 106660055029.

It is an arithmetic number, because the mean of its divisors is an integer number (106660055029).

Almost surely, 2^213320110057 is an apocalyptic number.

It is an amenable number.

213320110057 is a deficient number, since it is larger than the sum of its proper divisors (1).

213320110057 is an equidigital number, since it uses as much as digits as its factorization.

213320110057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 213320110057 its reverse (750011023312), we get a palindrome (963331133369).

The spelling of 213320110057 in words is "two hundred thirteen billion, three hundred twenty million, one hundred ten thousand, fifty-seven".