213214053121 has 2 divisors, whose sum is σ = 213214053122. Its totient is φ = 213214053120.

The previous prime is 213214053103. The next prime is 213214053137. The reversal of 213214053121 is 121350412312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123612012225 + 89602040896 = 351585^2 + 299336^2 .

It is a cyclic number.

It is not a de Polignac number, because 213214053121 - 2¹¹ = 213214051073 is a prime.

It is not a weakly prime, because it can be changed into another prime (213214053181) 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, 106607026560 + 106607026561.

It is an arithmetic number, because the mean of its divisors is an integer number (106607026561).

Almost surely, 2^213214053121 is an apocalyptic number.

It is an amenable number.

213214053121 is a deficient number, since it is larger than the sum of its proper divisors (1).

213214053121 is an equidigital number, since it uses as much as digits as its factorization.

213214053121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 213214053121 its reverse (121350412312), we get a palindrome (334564465433).

The spelling of 213214053121 in words is "two hundred thirteen billion, two hundred fourteen million, fifty-three thousand, one hundred twenty-one".