213013543 has 2 divisors, whose sum is σ = 213013544. Its totient is φ = 213013542.

The previous prime is 213013517. The next prime is 213013583. The reversal of 213013543 is 345310312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213013543 - 2¹⁷ = 212882471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213013583) 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, 106506771 + 106506772.

It is an arithmetic number, because the mean of its divisors is an integer number (106506772).

Almost surely, 2^213013543 is an apocalyptic number.

213013543 is a deficient number, since it is larger than the sum of its proper divisors (1).

213013543 is an equidigital number, since it uses as much as digits as its factorization.

213013543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 213013543 is about 14594.9834874864. The cubic root of 213013543 is about 597.2219189993.

Adding to 213013543 its reverse (345310312), we get a palindrome (558323855).

The spelling of 213013543 in words is "two hundred thirteen million, thirteen thousand, five hundred forty-three".