211321543103 has 8 divisors (see below), whose sum is σ = 230547364560. Its totient is φ = 192098183680.

The previous prime is 211321543093. The next prime is 211321543133. The reversal of 211321543103 is 301345123112.

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 211321543103 - 2⁴ = 211321543087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211321543133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433700 + ... + 781497.

It is an arithmetic number, because the mean of its divisors is an integer number (28818420570).

Almost surely, 2^211321543103 is an apocalyptic number.

211321543103 is a deficient number, since it is larger than the sum of its proper divisors (19225821457).

211321543103 is a wasteful number, since it uses less digits than its factorization.

211321543103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231017.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 211321543103 its reverse (301345123112), we get a palindrome (512666666215).

The spelling of 211321543103 in words is "two hundred eleven billion, three hundred twenty-one million, five hundred forty-three thousand, one hundred three".