21312201030203 has 8 divisors (see below), whose sum is σ = 22467769927680. Its totient is φ = 20185887041640.

The previous prime is 21312201030151. The next prime is 21312201030221. The reversal of 21312201030203 is 30203010221312.

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 21312201030203 - 2¹⁰ = 21312201029179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21312201030233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7313725733 + ... + 7313728646.

It is an arithmetic number, because the mean of its divisors is an integer number (2808471240960).

Almost surely, 2^{21312201030203} is an apocalyptic number.

21312201030203 is a deficient number, since it is larger than the sum of its proper divisors (1155568897477).

21312201030203 is a wasteful number, since it uses less digits than its factorization.

21312201030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14627454457.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21312201030203 its reverse (30203010221312), we get a palindrome (51515211251515).

The spelling of 21312201030203 in words is "twenty-one trillion, three hundred twelve billion, two hundred one million, thirty thousand, two hundred three".