21213313203003 has 8 divisors (see below), whose sum is σ = 28285098977616. Its totient is φ = 14141868115200.

The previous prime is 21213313202969. The next prime is 21213313203007. The reversal of 21213313203003 is 30030231331212.

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

It is not a de Polignac number, because 21213313203003 - 2⁸ = 21213313202747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21213313203007) 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, 85026378 + ... + 85275503.

It is an arithmetic number, because the mean of its divisors is an integer number (3535637372202).

Almost surely, 2^{21213313203003} is an apocalyptic number.

21213313203003 is a deficient number, since it is larger than the sum of its proper divisors (7071785774613).

21213313203003 is a wasteful number, since it uses less digits than its factorization.

21213313203003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170343405.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21213313203003 its reverse (30030231331212), we get a palindrome (51243544534215).

The spelling of 21213313203003 in words is "twenty-one trillion, two hundred thirteen billion, three hundred thirteen million, two hundred three thousand, three".