6543213542203 has 8 divisors (see below), whose sum is σ = 7093829862000. Its totient is φ = 5999353251168.

The previous prime is 6543213542113. The next prime is 6543213542209. The reversal of 6543213542203 is 3022453123456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6543213542203 - 2¹⁷ = 6543213411131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6543213542209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689005173 + ... + 1689009046.

It is an arithmetic number, because the mean of its divisors is an integer number (886728732750).

Almost surely, 2^{6543213542203} is an apocalyptic number.

6543213542203 is a deficient number, since it is larger than the sum of its proper divisors (550616319797).

6543213542203 is a wasteful number, since it uses less digits than its factorization.

6543213542203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378014381.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 6543213542203 its reverse (3022453123456), we get a palindrome (9565666665659).

The spelling of 6543213542203 in words is "six trillion, five hundred forty-three billion, two hundred thirteen million, five hundred forty-two thousand, two hundred three".