213124350230453 has 2 divisors, whose sum is σ = 213124350230454. Its totient is φ = 213124350230452.

The previous prime is 213124350230413. The next prime is 213124350230479. The reversal of 213124350230453 is 354032053421312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174556362672484 + 38567987557969 = 13211978^2 + 6210313^2 .

It is a cyclic number.

It is not a de Polignac number, because 213124350230453 - 2²² = 213124346036149 is a prime.

It is a super-2 number, since 2×213124350230453² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213124350230413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106562175115226 + 106562175115227.

It is an arithmetic number, because the mean of its divisors is an integer number (106562175115227).

Almost surely, 2^{213124350230453} is an apocalyptic number.

It is an amenable number.

213124350230453 is a deficient number, since it is larger than the sum of its proper divisors (1).

213124350230453 is an equidigital number, since it uses as much as digits as its factorization.

213124350230453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 213124350230453 in words is "two hundred thirteen trillion, one hundred twenty-four billion, three hundred fifty million, two hundred thirty thousand, four hundred fifty-three".