21013211233203 has 8 divisors (see below), whose sum is σ = 32020131403008. Its totient is φ = 12007549276104.

The previous prime is 21013211233159. The next prime is 21013211233237. The reversal of 21013211233203 is 30233211231012.

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

It is not a de Polignac number, because 21013211233203 - 2⁶ = 21013211233139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21013211231203) 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, 500314553151 + ... + 500314553192.

It is an arithmetic number, because the mean of its divisors is an integer number (4002516425376).

Almost surely, 2^{21013211233203} is an apocalyptic number.

21013211233203 is a deficient number, since it is larger than the sum of its proper divisors (11006920169805).

21013211233203 is a wasteful number, since it uses less digits than its factorization.

21013211233203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000629106353.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21013211233203 its reverse (30233211231012), we get a palindrome (51246422464215).

The spelling of 21013211233203 in words is "twenty-one trillion, thirteen billion, two hundred eleven million, two hundred thirty-three thousand, two hundred three".