213502043353 has 2 divisors, whose sum is σ = 213502043354. Its totient is φ = 213502043352.

The previous prime is 213502043347. The next prime is 213502043399. The reversal of 213502043353 is 353340205312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199070345929 + 14431697424 = 446173^2 + 120132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213502043353 is a prime.

It is not a weakly prime, because it can be changed into another prime (213502043653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106751021676 + 106751021677.

It is an arithmetic number, because the mean of its divisors is an integer number (106751021677).

Almost surely, 2^213502043353 is an apocalyptic number.

It is an amenable number.

213502043353 is a deficient number, since it is larger than the sum of its proper divisors (1).

213502043353 is an equidigital number, since it uses as much as digits as its factorization.

213502043353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 213502043353 its reverse (353340205312), we get a palindrome (566842248665).

The spelling of 213502043353 in words is "two hundred thirteen billion, five hundred two million, forty-three thousand, three hundred fifty-three".